c++ 判断windows系统和进程是32位还是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;

}