c++ 判斷windows系統和進程是32位還是64位

BOOL Is64BitOS()
{
    typedef VOID (WINAPI *LPFN_GetNativeSystemInfo)( __out LPSYSTEM_INFO lpSystemInfo );
    LPFN_GetNativeSystemInfo fnGetNativeSystemInfo = (LPFN_GetNativeSystemInfo)GetProcAddress( GetModuleHandleW(L"kernel32"),"GetNativeSystemInfo");
    if(fnGetNativeSystemInfo)
    {
        SYSTEM_INFO stInfo = {0};
        fnGetNativeSystemInfo( &stInfo);
        if( stInfo.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_IA64
            || stInfo.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64)
        {
            return TRUE;
        }
    }
    return FALSE;
}

BOOL Is64BitPorcess(DWORD dwProcessID)
{
    if (!Is64BitOS())
    {
        return FALSE;
    }else
    {
        HANDLE hProcess = OpenProcess(PROCESS_QUERY_INFORMATION,FALSE,dwProcessID);
        if(hProcess)
        {
            typedef BOOL (WINAPI *LPFN_ISWOW64PROCESS) (HANDLE, PBOOL);
            LPFN_ISWOW64PROCESS fnIsWow64Process = (LPFN_ISWOW64PROCESS)GetProcAddress( GetModuleHandleW(L"kernel32"),"IsWow64Process");
            if (NULL != fnIsWow64Process)
            {
                BOOL bIsWow64 = FALSE;
                fnIsWow64Process(hProcess,&bIsWow64);
                CloseHandle(hProcess);
                if (bIsWow64)
                {
                    return FALSE;
                }
                else
                {
                    return TRUE;
                }
            }
        }
    }
    return FALSE;
}