VC++获取屏幕大小第一篇 像素大小 GetSystemMetrics

《VC++获取屏幕大小第一篇 像素大小 GetSystemMetrics》和《VC++获取屏幕大小第二篇物理大小GetDeviceCaps 上》和《VC++获取屏幕大小第三篇物理大小GetDeviceCaps下》这三篇文章主要讲解在VC++下获取屏幕大小。这个功能非常简单，也比较实用。

要获取屏幕的像素大小要使用GetSystemMetrics函数。下面就来看看这个函数的用法：

函数功能：用于得到被定义的系统数据或者系统配置信息

函数原型：

// By MoreWindows( http://blog.csdn.net/MoreWindows )

int WINAPIGetSystemMetrics(

int nIndex

);

参数说明：

这个函数只有一个参数，不过这个参数可以取很多值。在WINUSER.H中有：

/*

* GetSystemMetrics() codes

*// MoreWindows( http://blog.csdn.net/MoreWindows )

*/

#define SM_CXSCREEN 0

#define SM_CYSCREEN 1

#define SM_CXVSCROLL 2

#define SM_CYHSCROLL 3

#define SM_CYCAPTION 4

#define SM_CXBORDER 5

#define SM_CYBORDER 6

#define SM_CXDLGFRAME 7

#define SM_CYDLGFRAME 8

#define SM_CYVTHUMB 9

#define SM_CXHTHUMB 10

#define SM_CXICON 11

#define SM_CYICON 12

#define SM_CXCURSOR 13

#define SM_CYCURSOR 14

#define SM_CYMENU 15

#define SM_CXFULLSCREEN 16

#define SM_CYFULLSCREEN 17

#define SM_CYKANJIWINDOW 18

#define SM_MOUSEPRESENT 19

#define SM_CYVSCROLL 20

#define SM_CXHSCROLL 21

#define SM_DEBUG 22

#define SM_SWAPBUTTON 23

#define SM_RESERVED1 24

#define SM_RESERVED2 25

#define SM_RESERVED3 26

#define SM_RESERVED4 27

#define SM_CXMIN 28

#define SM_CYMIN 29

#define SM_CXSIZE 30

#define SM_CYSIZE 31

#define SM_CXFRAME 32

#define SM_CYFRAME 33

#define SM_CXMINTRACK 34

#define SM_CYMINTRACK 35

#define SM_CXDOUBLECLK 36

#define SM_CYDOUBLECLK 37

#define SM_CXICONSPACING 38

#define SM_CYICONSPACING 39

#define SM_MENUDROPALIGNMENT 40

#define SM_PENWINDOWS 41

#define SM_DBCSENABLED 42

#define SM_CMOUSEBUTTONS 43

#if(WINVER >= 0x0400)

#define SM_CXFIXEDFRAME SM_CXDLGFRAME /*
;win40 name change */

#define SM_CYFIXEDFRAME SM_CYDLGFRAME /*
;win40 name change */

#define SM_CXSIZEFRAME SM_CXFRAME /*
;win40 name change */

#define SM_CYSIZEFRAME SM_CYFRAME /*
;win40 name change */

#define SM_SECURE 44

#define SM_CXEDGE 45

#define SM_CYEDGE 46

#define SM_CXMINSPACING 47

#define SM_CYMINSPACING 48

#define SM_CXSMICON 49

#define SM_CYSMICON 50

#define SM_CYSMCAPTION 51

#define SM_CXSMSIZE 52

#define SM_CYSMSIZE 53

#define SM_CXMENUSIZE 54

#define SM_CYMENUSIZE 55

#define SM_ARRANGE 56

#define SM_CXMINIMIZED 57

#define SM_CYMINIMIZED 58

#define SM_CXMAXTRACK 59

#define SM_CYMAXTRACK 60

#define SM_CXMAXIMIZED 61

#define SM_CYMAXIMIZED 62

#define SM_NETWORK 63

#define SM_CLEANBOOT 67

#define SM_CXDRAG 68

#define SM_CYDRAG 69

#endif /* WINVER >= 0x0400 */

#define SM_SHOWSOUNDS 70

#if(WINVER >= 0x0400)

#define SM_CXMENUCHECK 71 /* Use instead of GetMenuCheckMarkDimensions()!
*/

#define SM_CYMENUCHECK 72

#define SM_SLOWMACHINE 73

#define SM_MIDEASTENABLED 74

#endif /* WINVER >= 0x0400 */

#if (WINVER >= 0x0500) || (_WIN32_WINNT >= 0x0400)

#define SM_MOUSEWHEELPRESENT 75

#endif

#if(WINVER >= 0x0500)

#define SM_XVIRTUALSCREEN 76

#define SM_YVIRTUALSCREEN 77

#define SM_CXVIRTUALSCREEN 78

#define SM_CYVIRTUALSCREEN 79

#define SM_CMONITORS 80

#define SM_SAMEDISPLAYFORMAT 81

#endif /* WINVER >= 0x0500 */

#if (WINVER < 0x0500) && (!defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0400))

#define SM_CMETRICS 76

#else

#define SM_CMETRICS 83

#endif

///article/1392163.html

呵呵，够多吧，不用记，要用的时候查下MSDN就好了。由MSDN可以知道传入SM_CXSCREEN和SM_CYSCREEN就得到屏幕的宽和高。详见代码：

[cpp] view
plain copy

// 获取屏幕大小 像素大小

// By MoreWindows( http://blog.csdn.net/MoreWindows )

#include <stdio.h>

#include <windows.h>

int main()

{

printf(" 获取屏幕大小 像素大小\n");

printf(" -- By MoreWindows( http://blog.csdn.net/MoreWindows ) --\n\n");

int nScreenWidth, nScreenHeight;

nScreenWidth = GetSystemMetrics(SM_CXSCREEN);

nScreenHeight = GetSystemMetrics(SM_CYSCREEN);

printf("屏幕大小（像素） 宽：%d 高：%d\n", nScreenWidth, nScreenHeight);

return 0;

}

运行结果如下：



后面二篇《VC++获取屏幕大小第二篇物理大小GetDeviceCaps上》和《VC++获取屏幕大小第三篇物理大小GetDeviceCaps下》将介绍使用GetDeviceCaps函数来获取屏幕的物理大小，欢迎继续浏览。

地址1：/article/1392162.html

地址2：/article/1392161.html