OpenGL入门笔记(七)
2007-04-19 21:58
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OpenGL中的绝大多数特效都与某些类型的(色彩)混合有关。混色的定义为,将某个象素的颜色和已绘制在屏幕上与其对应的象素颜色相互结合。至于如何结合这两个颜色则依赖于颜色的alpha通道的分量值,以及/或者所使用的混色函数。Alpha通常是位于颜色值末尾的第4个颜色组成分量。前面这些课我们都是用GL_RGB来指定颜色的三个分量。相应的GL_RGBA可以指定alpha分量的值。更进一步,我们可以使用glColor4f()来代替glColor3f()。
绝大多数人都认为Alpha分量代表材料的透明度。这就是说,alpha值为0.0时所代表的材料是完全透明的。alpha值为1.0时所代表的材料则是完全不透明的。
混合的基本原理是就将要分色的图像各象素的颜色以及背景颜色均按照RGB规则各自分离之后,根据 — 图像的RGB颜色分量*alpha值+背景的RGB颜色分量*(1-alpha值) — 这样一个简单公式来混合之后,最后将混合得到的RGB分量重新合并。)公式如下:
OpenGL按照上面的公式计算这两个象素的混色结果。小写的s和r分别代表源象素和目标象素。大写的S和D则是相应的混色因子。这些决定了您如何对这些象素混色。绝大多数情况下,各颜色通道的alpha混色值大小相同,这样对源象素就有(As, As, As, As),目标象素则有(1, 1, 1, 1) - (As, As, As, As)。上面的公式就成了下面的模样:
这个公式会生成透明/半透明的效果。
在OpenGL中首先我们得打开混合, 然后设置混合式。在绘制透明物体的时候, 我们关闭深度缓存, 因为我们仍然希望在半透明物体后面的物体能被绘制。 这并不是使用混合的正确方式, 但是在情况简单的时候它会工作得很好。正确的混色过程应该是先绘制全部的场景之后再绘制透明的图形。并且要按照与深度缓存相反的次序来绘制(先画最远的物体)。考虑对两个多边形(1和2)进行alpha混合,不同的绘制次序会得到不同的结果。(这里假定多边形1离观察者最近,那么正确的过程应该先画多边形2,再画多边形1。正如您再现实中所见到的那样,从这两个“透明的”多边形背后照射来的光线总是先穿过多边形2,再穿过多边形1,最后才到达观察者的眼睛)。 在深度缓存启用时,您应该将透明图形按照深度进行排序,并在全部场景绘制完毕之后再绘制这些透明物体。否则您将得到不正确的结果。
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demo8
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#include <windows.h> // Header File For Windows
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#include <stdio.h> // Header File For Standard Input/Output
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#include <gl/gl.h> // Header File For The OpenGL32 Library
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#include <gl/glu.h> // Header File For The GLu32 Library
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#include <gl/glaux.h> // Header File For The Glaux Library
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HDC hDC=NULL; // Private GDI Device Context
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HGLRC hRC=NULL; // Permanent Rendering Context
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HWND hWnd=NULL; // Holds Our Window Handle
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HINSTANCE hInstance; // Holds The Instance Of The Application
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bool keys[256]; // Array Used For The Keyboard Routine
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bool active=TRUE; // Window Active Flag Set To TRUE By Default
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bool fullscreen=TRUE; // Fullscreen Flag Set To Fullscreen Mode By Default
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bool light; // Lighting ON/OFF
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bool blend; // Blending OFF/ON? ( NEW )
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bool lp; // L Pressed?
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bool fp; // F Pressed?
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bool bp; // B Pressed? ( NEW )
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GLfloat xrot; // X Rotation
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GLfloat yrot; // Y Rotation
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GLfloat xspeed; // X Rotation Speed
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GLfloat yspeed; // Y Rotation Speed
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GLfloat z=-5.0f; // Depth Into The Screen
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GLfloat LightAmbient[]=
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{ 0.5f, 0.5f, 0.5f, 1.0f };
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GLfloat LightDiffuse[]=
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{ 1.0f, 1.0f, 1.0f, 1.0f };
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GLfloat LightPosition[]=
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{ 0.0f, 0.0f, 2.0f, 1.0f };
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GLuint filter; // Which Filter To Use
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GLuint texture[3]; // Storage For 3 Textures
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LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); // Declaration For WndProc
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AUX_RGBImageRec *LoadBMP(char *Filename) // Loads A Bitmap Image
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{
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FILE *File=NULL; // File Handle
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if (!Filename) // Make Sure A Filename Was Given
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{
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return NULL; // If Not Return NULL
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}
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File=fopen(Filename,"r"); // Check To See If The File Exists
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if (File) // Does The File Exist?
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{
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fclose(File); // Close The Handle
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return auxDIBImageLoad(Filename); // Load The Bitmap And Return A Pointer
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}
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return NULL; // If Load Failed Return NULL
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}
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int LoadGLTextures() // Load Bitmaps And Convert To Textures
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{
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int Status=FALSE; // Status Indicator
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AUX_RGBImageRec *TextureImage[1]; // Create Storage Space For The Texture
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memset(TextureImage,0,sizeof(void *)*1); // Set The Pointer To NULL
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// Load The Bitmap, Check For Errors, If Bitmap's Not Found Quit
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if (TextureImage[0]=LoadBMP("Data/glass.bmp"))
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{
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Status=TRUE; // Set The Status To TRUE
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glGenTextures(3, &texture[0]); // Create Three Textures
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// Create Nearest Filtered Texture
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glBindTexture(GL_TEXTURE_2D, texture[0]);
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glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);
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glTexImage2D(GL_TEXTURE_2D, 0, 3, TextureImage[0]->sizeX, TextureImage[0]->sizeY, 0, GL_RGB, GL_UNSIGNED_BYTE, TextureImage[0]->data);
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// Create Linear Filtered Texture
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glBindTexture(GL_TEXTURE_2D, texture[1]);
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glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
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glTexImage2D(GL_TEXTURE_2D, 0, 3, TextureImage[0]->sizeX, TextureImage[0]->sizeY, 0, GL_RGB, GL_UNSIGNED_BYTE, TextureImage[0]->data);
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// Create MipMapped Texture
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glBindTexture(GL_TEXTURE_2D, texture[2]);
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glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR_MIPMAP_NEAREST);
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gluBuild2DMipmaps(GL_TEXTURE_2D, 3, TextureImage[0]->sizeX, TextureImage[0]->sizeY, GL_RGB, GL_UNSIGNED_BYTE, TextureImage[0]->data);
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}
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if (TextureImage[0]) // If Texture Exists
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{
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if (TextureImage[0]->data) // If Texture Image Exists
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{
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free(TextureImage[0]->data); // Free The Texture Image Memory
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}
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free(TextureImage[0]); // Free The Image Structure
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}
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return Status; // Return The Status
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}
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GLvoid ReSizeGLScene(GLsizei width, GLsizei height) // Resize And Initialize The GL Window
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{
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if (height==0) // Prevent A Divide By Zero By
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{
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height=1; // Making Height Equal One
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}
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glViewport(0,0,width,height); // Reset The Current Viewport
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glMatrixMode(GL_PROJECTION); // Select The Projection Matrix
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glLoadIdentity(); // Reset The Projection Matrix
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// Calculate The Aspect Ratio Of The Window
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gluPerspective(45.0f,(GLfloat)width/(GLfloat)height,0.1f,100.0f);
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glMatrixMode(GL_MODELVIEW); // Select The Modelview Matrix
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glLoadIdentity(); // Reset The Modelview Matrix
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}
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int InitGL(GLvoid) // All Setup For OpenGL Goes Here
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{
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if (!LoadGLTextures()) // Jump To Texture Loading Routine
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{
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return FALSE; // If Texture Didn't Load Return FALSE
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}
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glEnable(GL_TEXTURE_2D); // Enable Texture Mapping
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glShadeModel(GL_SMOOTH); // Enable Smooth Shading
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glClearColor(0.0f, 0.0f, 0.0f, 0.5f); // Black Background
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glClearDepth(1.0f); // Depth Buffer Setup
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glEnable(GL_DEPTH_TEST); // Enables Depth Testing
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glDepthFunc(GL_LEQUAL); // The Type Of Depth Testing To Do
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glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); // Really Nice Perspective Calculations
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glLightfv(GL_LIGHT1, GL_AMBIENT, LightAmbient); // Setup The Ambient Light
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glLightfv(GL_LIGHT1, GL_DIFFUSE, LightDiffuse); // Setup The Diffuse Light
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glLightfv(GL_LIGHT1, GL_POSITION,LightPosition); // Position The Light
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glEnable(GL_LIGHT1); // Enable Light One
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glColor4f(1.0f, 1.0f, 1.0f, 0.5); // Full Brightness. 50% Alpha
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glBlendFunc(GL_SRC_ALPHA,GL_ONE); // Set The Blending Function For Translucency
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return TRUE; // Initialization Went OK
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}
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int DrawGLScene(GLvoid) // Here's Where We Do All The Drawing
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{
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear The Screen And The Depth Buffer
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glLoadIdentity(); // Reset The View
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glTranslatef(0.0f,0.0f,z);
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glRotatef(xrot,1.0f,0.0f,0.0f);
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glRotatef(yrot,0.0f,1.0f,0.0f);
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glBindTexture(GL_TEXTURE_2D, texture[filter]);
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glBegin(GL_QUADS);
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// Front Face
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glNormal3f( 0.0f, 0.0f, 1.0f);
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glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
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glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
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glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Back Face
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glNormal3f( 0.0f, 0.0f,-1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Top Face
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glNormal3f( 0.0f, 1.0f, 0.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Bottom Face
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glNormal3f( 0.0f,-1.0f, 0.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Right face
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glNormal3f( 1.0f, 0.0f, 0.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Left Face
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glNormal3f(-1.0f, 0.0f, 0.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glEnd();
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
xrot+=xspeed;
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
yrot+=yspeed;
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return TRUE; // Keep Going
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
GLvoid KillGLWindow(GLvoid) // Properly Kill The Window
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (fullscreen) // Are We In Fullscreen Mode?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
ChangeDisplaySettings(NULL,0); // If So Switch Back To The Desktop
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
ShowCursor(TRUE); // Show Mouse Pointer
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (hRC) // Do We Have A Rendering Context?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!wglMakeCurrent(NULL,NULL)) // Are We Able To Release The DC And RC Contexts?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Release Of DC And RC Failed.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!wglDeleteContext(hRC)) // Are We Able To Delete The RC?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Release Rendering Context Failed.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
hRC=NULL; // Set RC To NULL
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (hDC && !ReleaseDC(hWnd,hDC)) // Are We Able To Release The DC
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Release Device Context Failed.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
hDC=NULL; // Set DC To NULL
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (hWnd && !DestroyWindow(hWnd)) // Are We Able To Destroy The Window?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Could Not Release hWnd.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
hWnd=NULL; // Set hWnd To NULL
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!UnregisterClass("OpenGL",hInstance)) // Are We Able To Unregister Class
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Could Not Unregister Class.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
hInstance=NULL; // Set hInstance To NULL
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedBlock.gif)
/**//* This Code Creates Our OpenGL Window. Parameters Are: *
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
* title - Title To Appear At The Top Of The Window *
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
* width - Width Of The GL Window Or Fullscreen Mode *
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
* height - Height Of The GL Window Or Fullscreen Mode *
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
* bits - Number Of Bits To Use For Color (8/16/24/32) *
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockEnd.gif)
* fullscreenflag - Use Fullscreen Mode (TRUE) Or Windowed Mode (FALSE) */
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
BOOL CreateGLWindow(char* title, int width, int height, int bits, bool fullscreenflag)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
GLuint PixelFormat; // Holds The Results After Searching For A Match
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
WNDCLASS wc; // Windows Class Structure
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
DWORD dwExStyle; // Window Extended Style
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
DWORD dwStyle; // Window Style
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
RECT WindowRect; // Grabs Rectangle Upper Left / Lower Right Values
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
WindowRect.left=(long)0; // Set Left Value To 0
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
WindowRect.right=(long)width; // Set Right Value To Requested Width
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
WindowRect.top=(long)0; // Set Top Value To 0
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
WindowRect.bottom=(long)height; // Set Bottom Value To Requested Height
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
fullscreen=fullscreenflag; // Set The Global Fullscreen Flag
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
hInstance = GetModuleHandle(NULL); // Grab An Instance For Our Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; // Redraw On Size, And Own DC For Window.
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
wc.lpfnWndProc = (WNDPROC) WndProc; // WndProc Handles Messages
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
wc.cbClsExtra = 0; // No Extra Window Data
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
wc.cbWndExtra = 0; // No Extra Window Data
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
wc.hInstance = hInstance; // Set The Instance
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
wc.hIcon = LoadIcon(NULL, IDI_WINLOGO); // Load The Default Icon
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
wc.hCursor = LoadCursor(NULL, IDC_ARROW); // Load The Arrow Pointer
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
wc.hbrBackground = NULL; // No Background Required For GL
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
wc.lpszMenuName = NULL; // We Don't Want A Menu
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
wc.lpszClassName = "OpenGL"; // Set The Class Name
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!RegisterClass(&wc)) // Attempt To Register The Window Class
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Failed To Register The Window Class.","ERROR",MB_OK|MB_ICONEXCLAMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return FALSE; // Return FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (fullscreen) // Attempt Fullscreen Mode?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
DEVMODE dmScreenSettings; // Device Mode
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
memset(&dmScreenSettings,0,sizeof(dmScreenSettings)); // Makes Sure Memory's Cleared
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
dmScreenSettings.dmSize=sizeof(dmScreenSettings); // Size Of The Devmode Structure
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
dmScreenSettings.dmPelsWidth = width; // Selected Screen Width
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
dmScreenSettings.dmPelsHeight = height; // Selected Screen Height
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
dmScreenSettings.dmBitsPerPel = bits; // Selected Bits Per Pixel
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
dmScreenSettings.dmFields=DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Try To Set Selected Mode And Get Results. NOTE: CDS_FULLSCREEN Gets Rid Of Start Bar.
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (ChangeDisplaySettings(&dmScreenSettings,CDS_FULLSCREEN)!=DISP_CHANGE_SUCCESSFUL)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// If The Mode Fails, Offer Two Options. Quit Or Use Windowed Mode.
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (MessageBox(NULL,"The Requested Fullscreen Mode Is Not Supported By/nYour Video Card. Use Windowed Mode Instead?","NeHe GL",MB_YESNO|MB_ICONEXCLAMATION)==IDYES)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
fullscreen=FALSE; // Windowed Mode Selected. Fullscreen = FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
else
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Pop Up A Message Box Letting User Know The Program Is Closing.
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Program Will Now Close.","ERROR",MB_OK|MB_ICONSTOP);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return FALSE; // Return FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (fullscreen) // Are We Still In Fullscreen Mode?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
dwExStyle=WS_EX_APPWINDOW; // Window Extended Style
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
dwStyle=WS_POPUP; // Windows Style
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
ShowCursor(FALSE); // Hide Mouse Pointer
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
else
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
dwExStyle=WS_EX_APPWINDOW | WS_EX_WINDOWEDGE; // Window Extended Style
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
dwStyle=WS_OVERLAPPEDWINDOW; // Windows Style
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
AdjustWindowRectEx(&WindowRect, dwStyle, FALSE, dwExStyle); // Adjust Window To True Requested Size
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Create The Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!(hWnd=CreateWindowEx( dwExStyle, // Extended Style For The Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
"OpenGL", // Class Name
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
title, // Window Title
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
dwStyle | // Defined Window Style
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
WS_CLIPSIBLINGS | // Required Window Style
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
WS_CLIPCHILDREN, // Required Window Style
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
0, 0, // Window Position
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
WindowRect.right-WindowRect.left, // Calculate Window Width
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
WindowRect.bottom-WindowRect.top, // Calculate Window Height
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
NULL, // No Parent Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
NULL, // No Menu
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
hInstance, // Instance
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
NULL))) // Dont Pass Anything To WM_CREATE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
KillGLWindow(); // Reset The Display
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Window Creation Error.","ERROR",MB_OK|MB_ICONEXCLAMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return FALSE; // Return FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
static PIXELFORMATDESCRIPTOR pfd= // pfd Tells Windows How We Want Things To Be
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
sizeof(PIXELFORMATDESCRIPTOR), // Size Of This Pixel Format Descriptor
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
1, // Version Number
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
PFD_DRAW_TO_WINDOW | // Format Must Support Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
PFD_SUPPORT_OPENGL | // Format Must Support OpenGL
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
PFD_DOUBLEBUFFER, // Must Support Double Buffering
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
PFD_TYPE_RGBA, // Request An RGBA Format
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
bits, // Select Our Color Depth
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
0, 0, 0, 0, 0, 0, // Color Bits Ignored
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
0, // No Alpha Buffer
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
0, // Shift Bit Ignored
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
0, // No Accumulation Buffer
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
0, 0, 0, 0, // Accumulation Bits Ignored
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
16, // 16Bit Z-Buffer (Depth Buffer)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
0, // No Stencil Buffer
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
0, // No Auxiliary Buffer
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
PFD_MAIN_PLANE, // Main Drawing Layer
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
0, // Reserved
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
0, 0, 0 // Layer Masks Ignored
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
};
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!(hDC=GetDC(hWnd))) // Did We Get A Device Context?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
KillGLWindow(); // Reset The Display
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Can't Create A GL Device Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return FALSE; // Return FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!(PixelFormat=ChoosePixelFormat(hDC,&pfd))) // Did Windows Find A Matching Pixel Format?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
KillGLWindow(); // Reset The Display
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Can't Find A Suitable PixelFormat.","ERROR",MB_OK|MB_ICONEXCLAMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return FALSE; // Return FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if(!SetPixelFormat(hDC,PixelFormat,&pfd)) // Are We Able To Set The Pixel Format?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
KillGLWindow(); // Reset The Display
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Can't Set The PixelFormat.","ERROR",MB_OK|MB_ICONEXCLAMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return FALSE; // Return FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!(hRC=wglCreateContext(hDC))) // Are We Able To Get A Rendering Context?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
KillGLWindow(); // Reset The Display
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Can't Create A GL Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return FALSE; // Return FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if(!wglMakeCurrent(hDC,hRC)) // Try To Activate The Rendering Context
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
KillGLWindow(); // Reset The Display
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Can't Activate The GL Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return FALSE; // Return FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
ShowWindow(hWnd,SW_SHOW); // Show The Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
SetForegroundWindow(hWnd); // Slightly Higher Priority
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
SetFocus(hWnd); // Sets Keyboard Focus To The Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
ReSizeGLScene(width, height); // Set Up Our Perspective GL Screen
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!InitGL()) // Initialize Our Newly Created GL Window
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
KillGLWindow(); // Reset The Display
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Initialization Failed.","ERROR",MB_OK|MB_ICONEXCLAMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return FALSE; // Return FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return TRUE; // Success
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
LRESULT CALLBACK WndProc( HWND hWnd, // Handle For This Window
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
UINT uMsg, // Message For This Window
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
WPARAM wParam, // Additional Message Information
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
LPARAM lParam) // Additional Message Information
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
switch (uMsg) // Check For Windows Messages
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
case WM_ACTIVATE: // Watch For Window Activate Message
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!HIWORD(wParam)) // Check Minimization State
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
active=TRUE; // Program Is Active
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
else
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
active=FALSE; // Program Is No Longer Active
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return 0; // Return To The Message Loop
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
case WM_SYSCOMMAND: // Intercept System Commands
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
switch (wParam) // Check System Calls
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
case SC_SCREENS***E: // Screensaver Trying To Start?
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
case SC_MONITORPOWER: // Monitor Trying To Enter Powersave?
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return 0; // Prevent From Happening
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
break; // Exit
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
case WM_CLOSE: // Did We Receive A Close Message?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
PostQuitMessage(0); // Send A Quit Message
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return 0; // Jump Back
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
case WM_KEYDOWN: // Is A Key Being Held Down?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
keys[wParam] = TRUE; // If So, Mark It As TRUE
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return 0; // Jump Back
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
case WM_KEYUP: // Has A Key Been Released?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
keys[wParam] = FALSE; // If So, Mark It As FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return 0; // Jump Back
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
case WM_SIZE: // Resize The OpenGL Window
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
ReSizeGLScene(LOWORD(lParam),HIWORD(lParam)); // LoWord=Width, HiWord=Height
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return 0; // Jump Back
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Pass All Unhandled Messages To DefWindowProc
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return DefWindowProc(hWnd,uMsg,wParam,lParam);
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
int WINAPI WinMain( HINSTANCE hInstance, // Instance
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
HINSTANCE hPrevInstance, // Previous Instance
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
LPSTR lpCmdLine, // Command Line Parameters
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
int nCmdShow) // Window Show State
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MSG msg; // Windows Message Structure
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
BOOL done=FALSE; // Bool Variable To Exit Loop
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Ask The User Which Screen Mode They Prefer
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (MessageBox(NULL,"Would You Like To Run In Fullscreen Mode?", "Start FullScreen?",MB_YESNO|MB_ICONQUESTION)==IDNO)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
fullscreen=FALSE; // Windowed Mode
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Create Our OpenGL Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!CreateGLWindow("Tom Stanis & NeHe's Blending Tutorial",640,480,16,fullscreen))
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return 0; // Quit If Window Was Not Created
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
while(!done) // Loop That Runs While done=FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (PeekMessage(&msg,NULL,0,0,PM_REMOVE)) // Is There A Message Waiting?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (msg.message==WM_QUIT) // Have We Received A Quit Message?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
done=TRUE; // If So done=TRUE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
else // If Not, Deal With Window Messages
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
TranslateMessage(&msg); // Translate The Message
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
DispatchMessage(&msg); // Dispatch The Message
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
else // If There Are No Messages
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Draw The Scene. Watch For ESC Key And Quit Messages From DrawGLScene()
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if ((active && !DrawGLScene()) || keys[VK_ESCAPE]) // Active? Was There A Quit Received?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
done=TRUE; // ESC or DrawGLScene Signalled A Quit
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
else // Not Time To Quit, Update Screen
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
SwapBuffers(hDC); // Swap Buffers (Double Buffering)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (keys['L'] && !lp)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
lp=TRUE;
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
light=!light;
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!light)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glDisable(GL_LIGHTING);
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
else
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glEnable(GL_LIGHTING);
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!keys['L'])
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
lp=FALSE;
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (keys['F'] && !fp)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
fp=TRUE;
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
filter+=1;
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (filter>2)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
filter=0;
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!keys['F'])
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
fp=FALSE;
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (keys[VK_PRIOR])
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
z-=0.02f;
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (keys[VK_NEXT])
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
z+=0.02f;
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (keys[VK_UP])
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
xspeed-=0.01f;
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (keys[VK_DOWN])
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
xspeed+=0.01f;
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (keys[VK_RIGHT])
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
yspeed+=0.01f;
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (keys[VK_LEFT])
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
yspeed-=0.01f;
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Blending Code Starts Here
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (keys['B'] && !bp)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
bp=TRUE;
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
blend = !blend;
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if(blend)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glEnable(GL_BLEND); // Turn Blending On
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glDisable(GL_DEPTH_TEST); // Turn Depth Testing Off
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
else
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glDisable(GL_BLEND); // Turn Blending Off
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glEnable(GL_DEPTH_TEST); // Turn Depth Testing On
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!keys['B'])
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
bp=FALSE;
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Blending Code Ends Here
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (keys[VK_F1]) // Is F1 Being Pressed?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
keys[VK_F1]=FALSE; // If So Make Key FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
KillGLWindow(); // Kill Our Current Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
fullscreen=!fullscreen; // Toggle Fullscreen / Windowed Mode
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Recreate Our OpenGL Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!CreateGLWindow("Tom Stanis & NeHe's Blending Tutorial",640,480,16,fullscreen))
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return 0; // Quit If Window Was Not Created
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Shutdown
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
KillGLWindow(); // Kill The Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return (msg.wParam); // Exit The Program
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
绝大多数人都认为Alpha分量代表材料的透明度。这就是说,alpha值为0.0时所代表的材料是完全透明的。alpha值为1.0时所代表的材料则是完全不透明的。
混合的基本原理是就将要分色的图像各象素的颜色以及背景颜色均按照RGB规则各自分离之后,根据 — 图像的RGB颜色分量*alpha值+背景的RGB颜色分量*(1-alpha值) — 这样一个简单公式来混合之后,最后将混合得到的RGB分量重新合并。)公式如下:
(Rs Sr + Rd Dr, Gs Sg + Gd Dg, Bs Sb + Bd Db, As Sa + Ad Da) |
(Rs As + Rd (1 - As), Gs As + Gd (1 - As), Bs As + Bs (1 - As), As As + Ad (1 - As)) |
在OpenGL中首先我们得打开混合, 然后设置混合式。在绘制透明物体的时候, 我们关闭深度缓存, 因为我们仍然希望在半透明物体后面的物体能被绘制。 这并不是使用混合的正确方式, 但是在情况简单的时候它会工作得很好。正确的混色过程应该是先绘制全部的场景之后再绘制透明的图形。并且要按照与深度缓存相反的次序来绘制(先画最远的物体)。考虑对两个多边形(1和2)进行alpha混合,不同的绘制次序会得到不同的结果。(这里假定多边形1离观察者最近,那么正确的过程应该先画多边形2,再画多边形1。正如您再现实中所见到的那样,从这两个“透明的”多边形背后照射来的光线总是先穿过多边形2,再穿过多边形1,最后才到达观察者的眼睛)。 在深度缓存启用时,您应该将透明图形按照深度进行排序,并在全部场景绘制完毕之后再绘制这些透明物体。否则您将得到不正确的结果。
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
demo8
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
#include <windows.h> // Header File For Windows
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
#include <stdio.h> // Header File For Standard Input/Output
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
#include <gl/gl.h> // Header File For The OpenGL32 Library
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
#include <gl/glu.h> // Header File For The GLu32 Library
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
#include <gl/glaux.h> // Header File For The Glaux Library
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
HDC hDC=NULL; // Private GDI Device Context
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
HGLRC hRC=NULL; // Permanent Rendering Context
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
HWND hWnd=NULL; // Holds Our Window Handle
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
HINSTANCE hInstance; // Holds The Instance Of The Application
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
bool keys[256]; // Array Used For The Keyboard Routine
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
bool active=TRUE; // Window Active Flag Set To TRUE By Default
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
bool fullscreen=TRUE; // Fullscreen Flag Set To Fullscreen Mode By Default
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
bool light; // Lighting ON/OFF
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
bool blend; // Blending OFF/ON? ( NEW )
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
bool lp; // L Pressed?
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
bool fp; // F Pressed?
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
bool bp; // B Pressed? ( NEW )
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
GLfloat xrot; // X Rotation
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
GLfloat yrot; // Y Rotation
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
GLfloat xspeed; // X Rotation Speed
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
GLfloat yspeed; // Y Rotation Speed
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
GLfloat z=-5.0f; // Depth Into The Screen
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedBlock.gif)
GLfloat LightAmbient[]=
![](http://blog.csdn.net/Images/dot.gif)
{ 0.5f, 0.5f, 0.5f, 1.0f };
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedBlock.gif)
GLfloat LightDiffuse[]=
![](http://blog.csdn.net/Images/dot.gif)
{ 1.0f, 1.0f, 1.0f, 1.0f };
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedBlock.gif)
GLfloat LightPosition[]=
![](http://blog.csdn.net/Images/dot.gif)
{ 0.0f, 0.0f, 2.0f, 1.0f };
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
GLuint filter; // Which Filter To Use
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
GLuint texture[3]; // Storage For 3 Textures
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); // Declaration For WndProc
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
AUX_RGBImageRec *LoadBMP(char *Filename) // Loads A Bitmap Image
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
FILE *File=NULL; // File Handle
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!Filename) // Make Sure A Filename Was Given
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return NULL; // If Not Return NULL
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
File=fopen(Filename,"r"); // Check To See If The File Exists
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (File) // Does The File Exist?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
fclose(File); // Close The Handle
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return auxDIBImageLoad(Filename); // Load The Bitmap And Return A Pointer
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return NULL; // If Load Failed Return NULL
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
int LoadGLTextures() // Load Bitmaps And Convert To Textures
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
int Status=FALSE; // Status Indicator
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
AUX_RGBImageRec *TextureImage[1]; // Create Storage Space For The Texture
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
memset(TextureImage,0,sizeof(void *)*1); // Set The Pointer To NULL
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Load The Bitmap, Check For Errors, If Bitmap's Not Found Quit
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (TextureImage[0]=LoadBMP("Data/glass.bmp"))
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
Status=TRUE; // Set The Status To TRUE
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glGenTextures(3, &texture[0]); // Create Three Textures
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Create Nearest Filtered Texture
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glBindTexture(GL_TEXTURE_2D, texture[0]);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexImage2D(GL_TEXTURE_2D, 0, 3, TextureImage[0]->sizeX, TextureImage[0]->sizeY, 0, GL_RGB, GL_UNSIGNED_BYTE, TextureImage[0]->data);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Create Linear Filtered Texture
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glBindTexture(GL_TEXTURE_2D, texture[1]);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexImage2D(GL_TEXTURE_2D, 0, 3, TextureImage[0]->sizeX, TextureImage[0]->sizeY, 0, GL_RGB, GL_UNSIGNED_BYTE, TextureImage[0]->data);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Create MipMapped Texture
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glBindTexture(GL_TEXTURE_2D, texture[2]);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR_MIPMAP_NEAREST);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
gluBuild2DMipmaps(GL_TEXTURE_2D, 3, TextureImage[0]->sizeX, TextureImage[0]->sizeY, GL_RGB, GL_UNSIGNED_BYTE, TextureImage[0]->data);
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (TextureImage[0]) // If Texture Exists
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (TextureImage[0]->data) // If Texture Image Exists
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
free(TextureImage[0]->data); // Free The Texture Image Memory
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
free(TextureImage[0]); // Free The Image Structure
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return Status; // Return The Status
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
GLvoid ReSizeGLScene(GLsizei width, GLsizei height) // Resize And Initialize The GL Window
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (height==0) // Prevent A Divide By Zero By
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
height=1; // Making Height Equal One
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glViewport(0,0,width,height); // Reset The Current Viewport
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glMatrixMode(GL_PROJECTION); // Select The Projection Matrix
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glLoadIdentity(); // Reset The Projection Matrix
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Calculate The Aspect Ratio Of The Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
gluPerspective(45.0f,(GLfloat)width/(GLfloat)height,0.1f,100.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glMatrixMode(GL_MODELVIEW); // Select The Modelview Matrix
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glLoadIdentity(); // Reset The Modelview Matrix
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
int InitGL(GLvoid) // All Setup For OpenGL Goes Here
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!LoadGLTextures()) // Jump To Texture Loading Routine
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return FALSE; // If Texture Didn't Load Return FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glEnable(GL_TEXTURE_2D); // Enable Texture Mapping
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glShadeModel(GL_SMOOTH); // Enable Smooth Shading
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glClearColor(0.0f, 0.0f, 0.0f, 0.5f); // Black Background
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glClearDepth(1.0f); // Depth Buffer Setup
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glEnable(GL_DEPTH_TEST); // Enables Depth Testing
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glDepthFunc(GL_LEQUAL); // The Type Of Depth Testing To Do
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); // Really Nice Perspective Calculations
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glLightfv(GL_LIGHT1, GL_AMBIENT, LightAmbient); // Setup The Ambient Light
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glLightfv(GL_LIGHT1, GL_DIFFUSE, LightDiffuse); // Setup The Diffuse Light
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glLightfv(GL_LIGHT1, GL_POSITION,LightPosition); // Position The Light
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glEnable(GL_LIGHT1); // Enable Light One
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glColor4f(1.0f, 1.0f, 1.0f, 0.5); // Full Brightness. 50% Alpha
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glBlendFunc(GL_SRC_ALPHA,GL_ONE); // Set The Blending Function For Translucency
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return TRUE; // Initialization Went OK
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
int DrawGLScene(GLvoid) // Here's Where We Do All The Drawing
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear The Screen And The Depth Buffer
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glLoadIdentity(); // Reset The View
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTranslatef(0.0f,0.0f,z);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glRotatef(xrot,1.0f,0.0f,0.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glRotatef(yrot,0.0f,1.0f,0.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glBindTexture(GL_TEXTURE_2D, texture[filter]);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glBegin(GL_QUADS);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Front Face
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glNormal3f( 0.0f, 0.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Back Face
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glNormal3f( 0.0f, 0.0f,-1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Top Face
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glNormal3f( 0.0f, 1.0f, 0.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Bottom Face
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glNormal3f( 0.0f,-1.0f, 0.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Right face
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glNormal3f( 1.0f, 0.0f, 0.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Left Face
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glNormal3f(-1.0f, 0.0f, 0.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glEnd();
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
xrot+=xspeed;
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
yrot+=yspeed;
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return TRUE; // Keep Going
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
GLvoid KillGLWindow(GLvoid) // Properly Kill The Window
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (fullscreen) // Are We In Fullscreen Mode?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
ChangeDisplaySettings(NULL,0); // If So Switch Back To The Desktop
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
ShowCursor(TRUE); // Show Mouse Pointer
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (hRC) // Do We Have A Rendering Context?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!wglMakeCurrent(NULL,NULL)) // Are We Able To Release The DC And RC Contexts?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Release Of DC And RC Failed.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!wglDeleteContext(hRC)) // Are We Able To Delete The RC?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Release Rendering Context Failed.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
hRC=NULL; // Set RC To NULL
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (hDC && !ReleaseDC(hWnd,hDC)) // Are We Able To Release The DC
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Release Device Context Failed.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
hDC=NULL; // Set DC To NULL
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (hWnd && !DestroyWindow(hWnd)) // Are We Able To Destroy The Window?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Could Not Release hWnd.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
hWnd=NULL; // Set hWnd To NULL
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!UnregisterClass("OpenGL",hInstance)) // Are We Able To Unregister Class
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Could Not Unregister Class.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
hInstance=NULL; // Set hInstance To NULL
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedBlock.gif)
/**//* This Code Creates Our OpenGL Window. Parameters Are: *
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
* title - Title To Appear At The Top Of The Window *
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
* width - Width Of The GL Window Or Fullscreen Mode *
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
* height - Height Of The GL Window Or Fullscreen Mode *
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
* bits - Number Of Bits To Use For Color (8/16/24/32) *
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockEnd.gif)
* fullscreenflag - Use Fullscreen Mode (TRUE) Or Windowed Mode (FALSE) */
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
BOOL CreateGLWindow(char* title, int width, int height, int bits, bool fullscreenflag)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
GLuint PixelFormat; // Holds The Results After Searching For A Match
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
WNDCLASS wc; // Windows Class Structure
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
DWORD dwExStyle; // Window Extended Style
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
DWORD dwStyle; // Window Style
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
RECT WindowRect; // Grabs Rectangle Upper Left / Lower Right Values
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
WindowRect.left=(long)0; // Set Left Value To 0
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
WindowRect.right=(long)width; // Set Right Value To Requested Width
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
WindowRect.top=(long)0; // Set Top Value To 0
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
WindowRect.bottom=(long)height; // Set Bottom Value To Requested Height
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
fullscreen=fullscreenflag; // Set The Global Fullscreen Flag
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
hInstance = GetModuleHandle(NULL); // Grab An Instance For Our Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; // Redraw On Size, And Own DC For Window.
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
wc.lpfnWndProc = (WNDPROC) WndProc; // WndProc Handles Messages
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
wc.cbClsExtra = 0; // No Extra Window Data
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
wc.cbWndExtra = 0; // No Extra Window Data
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
wc.hInstance = hInstance; // Set The Instance
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
wc.hIcon = LoadIcon(NULL, IDI_WINLOGO); // Load The Default Icon
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
wc.hCursor = LoadCursor(NULL, IDC_ARROW); // Load The Arrow Pointer
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
wc.hbrBackground = NULL; // No Background Required For GL
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
wc.lpszMenuName = NULL; // We Don't Want A Menu
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
wc.lpszClassName = "OpenGL"; // Set The Class Name
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!RegisterClass(&wc)) // Attempt To Register The Window Class
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Failed To Register The Window Class.","ERROR",MB_OK|MB_ICONEXCLAMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return FALSE; // Return FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (fullscreen) // Attempt Fullscreen Mode?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
DEVMODE dmScreenSettings; // Device Mode
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
memset(&dmScreenSettings,0,sizeof(dmScreenSettings)); // Makes Sure Memory's Cleared
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
dmScreenSettings.dmSize=sizeof(dmScreenSettings); // Size Of The Devmode Structure
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
dmScreenSettings.dmPelsWidth = width; // Selected Screen Width
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
dmScreenSettings.dmPelsHeight = height; // Selected Screen Height
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
dmScreenSettings.dmBitsPerPel = bits; // Selected Bits Per Pixel
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
dmScreenSettings.dmFields=DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Try To Set Selected Mode And Get Results. NOTE: CDS_FULLSCREEN Gets Rid Of Start Bar.
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (ChangeDisplaySettings(&dmScreenSettings,CDS_FULLSCREEN)!=DISP_CHANGE_SUCCESSFUL)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// If The Mode Fails, Offer Two Options. Quit Or Use Windowed Mode.
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (MessageBox(NULL,"The Requested Fullscreen Mode Is Not Supported By/nYour Video Card. Use Windowed Mode Instead?","NeHe GL",MB_YESNO|MB_ICONEXCLAMATION)==IDYES)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
fullscreen=FALSE; // Windowed Mode Selected. Fullscreen = FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
else
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Pop Up A Message Box Letting User Know The Program Is Closing.
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Program Will Now Close.","ERROR",MB_OK|MB_ICONSTOP);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return FALSE; // Return FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (fullscreen) // Are We Still In Fullscreen Mode?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
dwExStyle=WS_EX_APPWINDOW; // Window Extended Style
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
dwStyle=WS_POPUP; // Windows Style
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
ShowCursor(FALSE); // Hide Mouse Pointer
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
else
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
dwExStyle=WS_EX_APPWINDOW | WS_EX_WINDOWEDGE; // Window Extended Style
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
dwStyle=WS_OVERLAPPEDWINDOW; // Windows Style
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
AdjustWindowRectEx(&WindowRect, dwStyle, FALSE, dwExStyle); // Adjust Window To True Requested Size
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Create The Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!(hWnd=CreateWindowEx( dwExStyle, // Extended Style For The Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
"OpenGL", // Class Name
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
title, // Window Title
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
dwStyle | // Defined Window Style
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
WS_CLIPSIBLINGS | // Required Window Style
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
WS_CLIPCHILDREN, // Required Window Style
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
0, 0, // Window Position
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
WindowRect.right-WindowRect.left, // Calculate Window Width
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
WindowRect.bottom-WindowRect.top, // Calculate Window Height
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
NULL, // No Parent Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
NULL, // No Menu
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
hInstance, // Instance
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
NULL))) // Dont Pass Anything To WM_CREATE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
KillGLWindow(); // Reset The Display
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Window Creation Error.","ERROR",MB_OK|MB_ICONEXCLAMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return FALSE; // Return FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
static PIXELFORMATDESCRIPTOR pfd= // pfd Tells Windows How We Want Things To Be
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
sizeof(PIXELFORMATDESCRIPTOR), // Size Of This Pixel Format Descriptor
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
1, // Version Number
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
PFD_DRAW_TO_WINDOW | // Format Must Support Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
PFD_SUPPORT_OPENGL | // Format Must Support OpenGL
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
PFD_DOUBLEBUFFER, // Must Support Double Buffering
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
PFD_TYPE_RGBA, // Request An RGBA Format
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
bits, // Select Our Color Depth
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
0, 0, 0, 0, 0, 0, // Color Bits Ignored
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
0, // No Alpha Buffer
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
0, // Shift Bit Ignored
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
0, // No Accumulation Buffer
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
0, 0, 0, 0, // Accumulation Bits Ignored
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
16, // 16Bit Z-Buffer (Depth Buffer)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
0, // No Stencil Buffer
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
0, // No Auxiliary Buffer
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
PFD_MAIN_PLANE, // Main Drawing Layer
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
0, // Reserved
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
0, 0, 0 // Layer Masks Ignored
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
};
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!(hDC=GetDC(hWnd))) // Did We Get A Device Context?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
KillGLWindow(); // Reset The Display
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Can't Create A GL Device Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return FALSE; // Return FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!(PixelFormat=ChoosePixelFormat(hDC,&pfd))) // Did Windows Find A Matching Pixel Format?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
KillGLWindow(); // Reset The Display
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Can't Find A Suitable PixelFormat.","ERROR",MB_OK|MB_ICONEXCLAMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return FALSE; // Return FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if(!SetPixelFormat(hDC,PixelFormat,&pfd)) // Are We Able To Set The Pixel Format?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
KillGLWindow(); // Reset The Display
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Can't Set The PixelFormat.","ERROR",MB_OK|MB_ICONEXCLAMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return FALSE; // Return FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!(hRC=wglCreateContext(hDC))) // Are We Able To Get A Rendering Context?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
KillGLWindow(); // Reset The Display
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Can't Create A GL Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return FALSE; // Return FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if(!wglMakeCurrent(hDC,hRC)) // Try To Activate The Rendering Context
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
KillGLWindow(); // Reset The Display
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Can't Activate The GL Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return FALSE; // Return FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
ShowWindow(hWnd,SW_SHOW); // Show The Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
SetForegroundWindow(hWnd); // Slightly Higher Priority
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
SetFocus(hWnd); // Sets Keyboard Focus To The Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
ReSizeGLScene(width, height); // Set Up Our Perspective GL Screen
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!InitGL()) // Initialize Our Newly Created GL Window
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
KillGLWindow(); // Reset The Display
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MessageBox(NULL,"Initialization Failed.","ERROR",MB_OK|MB_ICONEXCLAMATION);
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return FALSE; // Return FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return TRUE; // Success
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
LRESULT CALLBACK WndProc( HWND hWnd, // Handle For This Window
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
UINT uMsg, // Message For This Window
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
WPARAM wParam, // Additional Message Information
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
LPARAM lParam) // Additional Message Information
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
switch (uMsg) // Check For Windows Messages
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
case WM_ACTIVATE: // Watch For Window Activate Message
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!HIWORD(wParam)) // Check Minimization State
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
active=TRUE; // Program Is Active
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
else
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
active=FALSE; // Program Is No Longer Active
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return 0; // Return To The Message Loop
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
case WM_SYSCOMMAND: // Intercept System Commands
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
switch (wParam) // Check System Calls
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
case SC_SCREENS***E: // Screensaver Trying To Start?
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
case SC_MONITORPOWER: // Monitor Trying To Enter Powersave?
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return 0; // Prevent From Happening
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
break; // Exit
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
case WM_CLOSE: // Did We Receive A Close Message?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
PostQuitMessage(0); // Send A Quit Message
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return 0; // Jump Back
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
case WM_KEYDOWN: // Is A Key Being Held Down?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
keys[wParam] = TRUE; // If So, Mark It As TRUE
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return 0; // Jump Back
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
case WM_KEYUP: // Has A Key Been Released?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
keys[wParam] = FALSE; // If So, Mark It As FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return 0; // Jump Back
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
case WM_SIZE: // Resize The OpenGL Window
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
ReSizeGLScene(LOWORD(lParam),HIWORD(lParam)); // LoWord=Width, HiWord=Height
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return 0; // Jump Back
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Pass All Unhandled Messages To DefWindowProc
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return DefWindowProc(hWnd,uMsg,wParam,lParam);
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
int WINAPI WinMain( HINSTANCE hInstance, // Instance
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
HINSTANCE hPrevInstance, // Previous Instance
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
LPSTR lpCmdLine, // Command Line Parameters
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
int nCmdShow) // Window Show State
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
MSG msg; // Windows Message Structure
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
BOOL done=FALSE; // Bool Variable To Exit Loop
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Ask The User Which Screen Mode They Prefer
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (MessageBox(NULL,"Would You Like To Run In Fullscreen Mode?", "Start FullScreen?",MB_YESNO|MB_ICONQUESTION)==IDNO)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
fullscreen=FALSE; // Windowed Mode
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Create Our OpenGL Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!CreateGLWindow("Tom Stanis & NeHe's Blending Tutorial",640,480,16,fullscreen))
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return 0; // Quit If Window Was Not Created
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
while(!done) // Loop That Runs While done=FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (PeekMessage(&msg,NULL,0,0,PM_REMOVE)) // Is There A Message Waiting?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (msg.message==WM_QUIT) // Have We Received A Quit Message?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
done=TRUE; // If So done=TRUE
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
else // If Not, Deal With Window Messages
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
TranslateMessage(&msg); // Translate The Message
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
DispatchMessage(&msg); // Dispatch The Message
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
else // If There Are No Messages
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Draw The Scene. Watch For ESC Key And Quit Messages From DrawGLScene()
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if ((active && !DrawGLScene()) || keys[VK_ESCAPE]) // Active? Was There A Quit Received?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
done=TRUE; // ESC or DrawGLScene Signalled A Quit
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
else // Not Time To Quit, Update Screen
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
SwapBuffers(hDC); // Swap Buffers (Double Buffering)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (keys['L'] && !lp)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
lp=TRUE;
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
light=!light;
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!light)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glDisable(GL_LIGHTING);
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
else
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glEnable(GL_LIGHTING);
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!keys['L'])
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
lp=FALSE;
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (keys['F'] && !fp)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
fp=TRUE;
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
filter+=1;
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (filter>2)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
filter=0;
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!keys['F'])
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
fp=FALSE;
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (keys[VK_PRIOR])
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
z-=0.02f;
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (keys[VK_NEXT])
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
z+=0.02f;
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (keys[VK_UP])
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
xspeed-=0.01f;
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (keys[VK_DOWN])
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
xspeed+=0.01f;
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (keys[VK_RIGHT])
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
yspeed+=0.01f;
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (keys[VK_LEFT])
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
yspeed-=0.01f;
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Blending Code Starts Here
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (keys['B'] && !bp)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
bp=TRUE;
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
blend = !blend;
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if(blend)
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glEnable(GL_BLEND); // Turn Blending On
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glDisable(GL_DEPTH_TEST); // Turn Depth Testing Off
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
else
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glDisable(GL_BLEND); // Turn Blending Off
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
glEnable(GL_DEPTH_TEST); // Turn Depth Testing On
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!keys['B'])
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
bp=FALSE;
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Blending Code Ends Here
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (keys[VK_F1]) // Is F1 Being Pressed?
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
keys[VK_F1]=FALSE; // If So Make Key FALSE
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
KillGLWindow(); // Kill Our Current Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
fullscreen=!fullscreen; // Toggle Fullscreen / Windowed Mode
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Recreate Our OpenGL Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
if (!CreateGLWindow("Tom Stanis & NeHe's Blending Tutorial",640,480,16,fullscreen))
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/ContractedSubBlock.gif)
![](http://blog.csdn.net/Images/dot.gif)
{
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return 0; // Quit If Window Was Not Created
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
// Shutdown
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
KillGLWindow(); // Kill The Window
![](http://blog.csdn.net/Images/OutliningIndicators/InBlock.gif)
return (msg.wParam); // Exit The Program
![](http://blog.csdn.net/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
![](http://blog.csdn.net/Images/OutliningIndicators/None.gif)
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