? 《 VC++獲取屏幕大小第一篇 像素大小 GetSystemMetrics 》和《 VC++獲取屏幕大小第二篇物理大小GetDeviceCaps 上 》和《 VC++獲取屏幕大小第三篇物理大小GetDeviceCaps下 》這三篇文章主要講解在 VC++ 下獲取屏幕大小。這個功能非常簡單，也比較實用。

?

??? 要獲取屏幕的像素大小要使用GetSystemMetrics函數。下面就來看看這個函數的用法：

函數功能：用于得到被定義的系統數據或者系統配置信息

函數原型：

//?By?MoreWindows(?http://blog.csdn.NET/MoreWindows?) ?

int WINAPIGetSystemMetrics(

?????? int nIndex

);

參數說明：

這個函數只有一個參數，不過這個參數可以取很多值。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

//http://blog.csdn.net/morewindows/article/details/8502583

?

呵呵，夠多吧，不用記，要用的時候查下MSDN就好了。由MSDN可以知道傳入SM_CXSCREEN和SM_CYSCREEN就得到屏幕的寬和高。詳見代碼：

[cpp] view plaincopy print?

//???獲取屏幕大小?像素大小??

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

#include?<stdio.h>??

#include?<windows.h>??

int?main()??

{??

????printf("????獲取屏幕大小?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）?寬：%d?高：%d\n",?nScreenWidth,?nScreenHeight);??

????return?0;??

}??

// 獲取屏幕大小 像素大小 // By MoreWindows( http://blog.csdn.net/MoreWindows ) #include <stdio.h> #include <windows.h> int main() {printf(" 獲取屏幕大小 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） 寬：%d 高：%d\n", nScreenWidth, nScreenHeight);return 0; }

運行結果如下：

?

后面二篇《VC++獲取屏幕大小第二篇物理大小GetDeviceCaps上》和《VC++獲取屏幕大小第三篇物理大小GetDeviceCaps下》將介紹使用GetDeviceCaps函數來獲取屏幕的物理大小，歡迎繼續瀏覽。

地址1：http://blog.csdn.net/morewindows/article/details/8502592

地址2：http://blog.csdn.net/morewindows/article/details/8610891

?

轉載請標明出處，原文地址：http://blog.csdn.net/morewindows/article/details/8502583

總結

以上是生活随笔為你收集整理的VC++获取屏幕大小第一篇 像素大小GetSystemMetrics的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。