获取系统版本号

 1 #define WINXP 5
 2 #define WIN7 6
 3 #define WIN7X32 632
 4 //获取系统版本号
 5 DWORD GetOSVer() 
 6 { 
 7     OSVERSIONINFO   osver;    
 8     osver.dwOSVersionInfoSize   =   sizeof(OSVERSIONINFO); 
 9     LPSYSTEM_INFO lpSystemInfo=new SYSTEM_INFO; 
10     GetNativeSystemInfo(lpSystemInfo);
11     GetVersionEx(&osver);    
12     if(osver.dwPlatformId == 2) 
13     { 
14         if(osver.dwMajorVersion == WINXP && osver.dwMinorVersion == 1) 
15         { 
16 
17             return WINXP; 
18         } 
19         if (osver.dwMajorVersion == WIN7 && osver.dwMinorVersion == 1)
20         {
21 
22             return WIN7X32;
23         }
24     } 
25     return 0; 
26 }