判断系统版本

TRACE("获取系统版本信息------------------------------------------------------\n");
    
    OSVERSIONINFOEX OSVersionInfoEx = {sizeof(OSVERSIONINFOEX)};
    GetVersionEx((LPOSVERSIONINFO)&OSVersionInfoEx);
    TRACE("MajorVersion=%d  MinorVersion=%d  BuildNumber=%d  \n"
          "PlatformId=%d  ServicePackMajor=%d  ServicePackMinor=%d  \n",
          OSVersionInfoEx.dwMajorVersion, OSVersionInfoEx.dwMinorVersion, OSVersionInfoEx.dwBuildNumber, 
          OSVersionInfoEx.dwPlatformId, OSVersionInfoEx.wServicePackMajor, OSVersionInfoEx.wServicePackMinor);
    
    TRACE("判断系统版本Win2000以上------------------------------------------------------\n");
    
    // 设置要比较的版本信息
    ZeroMemory(&OSVersionInfoEx, sizeof(OSVERSIONINFOEX));
    
    OSVersionInfoEx.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
    OSVersionInfoEx.dwMajorVersion = 5;
    OSVersionInfoEx.dwMinorVersion = 0;
    OSVersionInfoEx.dwPlatformId = VER_PLATFORM_WIN32_NT;

    // 设置 MASK
    DWORDLONG dwlConditionMask = 0;

    VER_SET_CONDITION(dwlConditionMask, VER_MAJORVERSION, VER_GREATER_EQUAL);
    VER_SET_CONDITION(dwlConditionMask, VER_MINORVERSION, VER_GREATER_EQUAL);
    VER_SET_CONDITION(dwlConditionMask, VER_PLATFORMID,      VER_EQUAL);

    if (!VerifyVersionInfo(&OSVersionInfoEx, VER_MAJORVERSION | VER_MINORVERSION | VER_PLATFORMID, dwlConditionMask))
    {
        MessageBox(NULL, _T("本程序须运行于windows 2000以上。"), _T("错误"), MB_ICONERROR);
        return 0;
    }