获得windows操作系统的版本

        CString sOSInfo, sTmp;OSVERSIONINFOEX osvi;BOOL bOsVersionInfoEx;// Try calling GetVersionEx using the OSVERSIONINFOEX structure.// If that fails, try using the OSVERSIONINFO structure.ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);if( !(bOsVersionInfoEx = GetVersionEx ((OSVERSIONINFO *) &osvi)) ){osvi.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);if (! GetVersionEx ( (OSVERSIONINFO *) &osvi) ) return FALSE;}switch (osvi.dwPlatformId){// Test for the Windows NT product family.case VER_PLATFORM_WIN32_NT:if ( osvi.dwMajorVersion > 5)sOSInfo = "Microsoft Windows Vista, ";// Test for the specific product family.if ( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 2 )sOSInfo = "Microsoft Windows Server 2003 family, ";if ( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 1 )sOSInfo = "Microsoft Windows XP ";if ( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 0 )sOSInfo = "Microsoft Windows 2000 ";if ( osvi.dwMajorVersion <= 4 )sOSInfo = "Microsoft Windows NT ";// Test for specific product on Windows NT 4.0 SP6 and later.if( bOsVersionInfoEx ){// Test for the workstation type.if ( osvi.wProductType == VER_NT_WORKSTATION ){if( osvi.dwMajorVersion == 4 )sOSInfo += "Workstation 4.0 ";else if( osvi.wSuiteMask & VER_SUITE_PERSONAL )sOSInfo += "Home Edition ";elsesOSInfo += "Professional ";}// Test for the server type.else if ( osvi.wProductType == VER_NT_SERVER ){if( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 2 ){if( osvi.wSuiteMask & VER_SUITE_DATACENTER )sOSInfo += "Datacenter Edition ";else if( osvi.wSuiteMask & VER_SUITE_ENTERPRISE )sOSInfo += "Enterprise Edition ";else if ( osvi.wSuiteMask == VER_SUITE_BLADE )sOSInfo += "Web Edition ";elsesOSInfo += "Standard Edition ";}else if( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 0 ){if( osvi.wSuiteMask & VER_SUITE_DATACENTER )sOSInfo += "Datacenter Server ";else if( osvi.wSuiteMask & VER_SUITE_ENTERPRISE )sOSInfo += "Advanced Server ";elsesOSInfo += "Server ";}else  // Windows NT 4.0 {if( osvi.wSuiteMask & VER_SUITE_ENTERPRISE )sOSInfo += "Server 4.0, Enterprise Edition ";elsesOSInfo += "Server 4.0 ";}}}else  // Test for specific product on Windows NT 4.0 SP5 and earlier{HKEY hKey;char szProductType[BUFSIZE];DWORD dwBufLen=BUFSIZE;LONG lRet;lRet = RegOpenKeyEx( HKEY_LOCAL_MACHINE,"SYSTEM//CurrentControlSet//Control//ProductOptions",0, KEY_QUERY_VALUE, &hKey );if( lRet != ERROR_SUCCESS )return FALSE;lRet = RegQueryValueEx( hKey, "ProductType", NULL, NULL,(LPBYTE) szProductType, &dwBufLen);if( (lRet != ERROR_SUCCESS) || (dwBufLen > BUFSIZE) )return FALSE;RegCloseKey( hKey );if ( lstrcmpi( "WINNT", szProductType) == 0 )printf( "Workstation " );if ( lstrcmpi( "LANMANNT", szProductType) == 0 )printf( "Server " );if ( lstrcmpi( "SERVERNT", szProductType) == 0 )sOSInfo += "Advanced Server ";sTmp.Format( "%d.%d ", osvi.dwMajorVersion, osvi.dwMinorVersion );sOSInfo += sTmp;}// Display service pack (if any) and build number.if( osvi.dwMajorVersion == 4 && lstrcmpi( osvi.szCSDVersion, "Service Pack 6" ) == 0 ){HKEY hKey;LONG lRet;// Test for SP6 versus SP6a.lRet = RegOpenKeyEx( HKEY_LOCAL_MACHINE,"SOFTWARE//Microsoft//Windows NT//CurrentVersion//Hotfix//Q246009",0, KEY_QUERY_VALUE, &hKey );if( lRet == ERROR_SUCCESS ){sTmp.Format( "Service Pack 6a (Build %d)/n", osvi.dwBuildNumber & 0xFFFF ); sOSInfo += sTmp;}else // Windows NT 4.0 prior to SP6a{sTmp.Format( "%s (Build %d)/n",osvi.szCSDVersion,osvi.dwBuildNumber & 0xFFFF);sOSInfo += sTmp;}RegCloseKey( hKey );}else // Windows NT 3.51 and earlier or Windows 2000 and later{sTmp.Format( "%s (Build %d)/n",osvi.szCSDVersion,osvi.dwBuildNumber & 0xFFFF);sOSInfo += sTmp;}break;// Test for the Windows 95 product family.case VER_PLATFORM_WIN32_WINDOWS:if (osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 0){sOSInfo = "Microsoft Windows 95 ";if ( osvi.szCSDVersion[1] == &apos;C&apos; || osvi.szCSDVersion[1] == &apos;B&apos; )sOSInfo += "OSR2 ";} if (osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 10){sOSInfo = "Microsoft Windows 98 ";if ( osvi.szCSDVersion[1] == &apos;A&apos; )sOSInfo += "SE ";} if (osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 90){sOSInfo = "Microsoft Windows Millennium Edition/n";} break;case VER_PLATFORM_WIN32s:sOSInfo += "Microsoft Win32s/n";break;}return sOSInfo;

获得Windows操作系统的版本信息：（从MSDN拷贝，加了一句话而已）

我的系统版本信息：Microsoft Windows Vista, Home Edition  (Build 6000)