My simple API

#include <windows.h>

/***********************************************************************/

LRESULT CALLBACK WinProc(HWND hwnd,UINT uMsg,WPARAM wParam,LPARAM lParam)

{

switch( uMsg )

{

case WM_KEYDOWN://击键消息

switch( wParam )

{

case VK_ESCAPE:

PostMessage(hwnd, WM_CLOSE, 0, 0);//给窗口发送WM_CLOSE消息

break;

}

return 0; //处理完一个消息后返回0

case WM_CLOSE: //准备退出

DestroyWindow( hwnd ); //释放窗口

return 0;

case WM_RBUTTONDOWN:

MessageBox(hwnd,"鼠标右键按下了!","Mouse",MB_OK);

return 0;

case WM_DESTROY: //如果窗口被人释放…

PostQuitMessage( 0 ); //给窗口发送WM_QUIT消息

return 0;

}

//调用缺省消息处理过程

return DefWindowProc(hwnd, uMsg, wParam, lParam);

}

/***********************************************************************/

HWND InitWindow(HINSTANCE hinst, int nCmdShow)

{

HWND hwnd; // the window handle we obtain will be put here

WNDCLASSEX wc;

// set up and register window class

memset(&wc, 0, sizeof(wc));

wc.cbSize = sizeof(wc);

wc.style = CS_HREDRAW | CS_VREDRAW;

wc.lpfnWndProc = WinProc; // change this to NULL and crash!

wc.cbClsExtra = 0;

wc.cbWndExtra = 0;

wc.hInstance = hinst;

wc.hIcon = NULL;

wc.hIconSm = NULL;

wc.hCursor = LoadCursor(NULL, IDC_ARROW);

wc.hbrBackground = CreateSolidBrush(RGB(100,0,0)); //CreateSolidBrush (RGB(100, 0, 0));

wc.lpszMenuName = NULL;

wc.lpszClassName = "MyCoolWindow";

RegisterClassEx(&wc);

// create a window that's 200 pixels wide, 100 tall

hwnd = CreateWindowEx(0, "MyCoolWindow", "My First Window",

WS_OVERLAPPEDWINDOW, 50, 50, 200, 100, NULL, NULL, hinst, NULL);

if (!hwnd) {

::MessageBox(NULL, "CreateWindow failed!", "Ch1p1_HackedWindowProc", MB_ICONSTOP);

exit(-1);

}

ShowWindow(hwnd, nCmdShow);

return(hwnd);

}

/***********************************************************************/

int WINAPI WinMain(HINSTANCE hInstance,

HINSTANCE hPrevInstance,

LPSTR lpCmdLine,

int nCmdShow)

{

HWND hwnd = InitWindow(hInstance, nCmdShow);

MSG msg;

//进入消息循环：

for(;;)

{

if(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))

{

if ( msg.message==WM_QUIT) break;

TranslateMessage(&msg);

DispatchMessage(&msg);

}

}

return msg.wParam;

}