请问检测操作系统类型的API是那个

Question

如题，谢谢

Answer 1

void CLakerDlg::DetectSystemVersion(void)
{
    OSVERSIONINFOEX osvi;
    BOOL bOsVersionInfoEx;
    //char * s = new char[ 100 ];
    memset( sql, 0, 100 );
#define a( t ) strcat( sql, t )    ZeroMemory( &osvi, sizeof( OSVERSIONINFOEX ) );
    osvi.dwOSVersionInfoSize = sizeof( OSVERSIONINFOEX );
    a( "    -->" );    if( !( bOsVersionInfoEx = GetVersionEx( ( OSVERSIONINFO * ) &osvi ) ) )
    {
        osvi.dwOSVersionInfoSize = sizeof ( OSVERSIONINFO );
        if ( !GetVersionEx ( ( OSVERSIONINFO * ) &osvi) )
        {
            //delete []s;
            return;
        }
    }
    switch (osvi.dwPlatformId)
    {
    case VER_PLATFORM_WIN32_NT:
        if( osvi.dwMajorVersion <= 4 )
            a( "Microsoft Windows NT " );
        if( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 0 )
            a( "Microsoft Windows 2000 " );
        if( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 1 )
            a( "Microsoft Windows XP " );
        if( bOsVersionInfoEx )
        {
            if ( osvi.wProductType == VER_NT_WORKSTATION )
            {
                if( osvi.wSuiteMask & VER_SUITE_PERSONAL )
                    a( "Personal " );
                else
                    a( "Professional " );
            }
            else if ( osvi.wProductType == VER_NT_SERVER )
            {
                if( osvi.wSuiteMask & VER_SUITE_DATACENTER )
                    a ( "DataCenter Server " );
                else if(  osvi.wSuiteMask & VER_SUITE_ENTERPRISE  )
                    a ( "Advanced Server " );
                else
                    a ( "Server " );
            }
        }
        else
        {
            HKEY hKey;
            char szProductType[80];
            DWORD dwBufLen;            RegOpenKeyEx( HKEY_LOCAL_MACHINE, "SYSTEM\\CurrentControlSet\\Control\\ProductOptions", 0, KEY_QUERY_VALUE, &hKey );
            RegQueryValueEx( hKey, "ProductType", NULL, NULL, ( LPBYTE )szProductType, &dwBufLen );
            RegCloseKey( hKey );
            if( lstrcmpi( "WINNT", szProductType ) == 0 )
                a( "Professional " );
            if( lstrcmpi( "LANMANNT", szProductType ) == 0 )
                a(  "Server "  );
            if( lstrcmpi( "SERVERNT", szProductType ) == 0 )
                a( "Advanced Server " );
        }        if (  osvi.dwMajorVersion <= 4  )
        {
            CString s0;
            s0.Format( "version %d.%d %s ( Build %d )", osvi.dwMajorVersion, osvi.dwMinorVersion, osvi.szCSDVersion, osvi.dwBuildNumber & 0xFFFF );
            a( ( LPCTSTR )s0 );
        }
        else
        { 
            CString s1;
            s1.Format( "%s ( Build %d )", osvi.szCSDVersion, osvi.dwBuildNumber & 0xFFFF );
            a( ( LPCTSTR )s1 );
        }
        break;    case VER_PLATFORM_WIN32_WINDOWS:        if ( osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 0 )
        {
            a( "Microsoft Windows 95 " );
            if ( osvi.szCSDVersion[ 1 ] == 'C' || osvi.szCSDVersion[ 1 ] == 'B'  )
                a( "OSR2 "  );
        } 
        if ( osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 10 )
        {
            a( "Microsoft Windows 98 " );
            if ( osvi.szCSDVersion[1] == 'A')
            a( "SE "  );
        } 
        if ( osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 90 )
        {
            a( "Microsoft Windows Me " );
        } 
        break;    case VER_PLATFORM_WIN32s:
        a( "Microsoft Win32s" );
        break;
    }
    DispMessage( ( LPCTSTR )sql );
    //delete []s;
    return; 
}