windows获取远程桌面连接的客户端ip

DWORD dwSessionID = -1; // 0 is 1st console session created on XP, 1 is 1st console session on Vista
    LPTSTR pData = NULL;
    DWORD cbReturned = 0;
    bool fActiveSession = false;
    //    取ip, ok
    if( WTSQuerySessionInformation(WTS_CURRENT_SERVER_HANDLE, dwSessionID, /*WTSConnectState*/ /*WTSUserName*/WTSClientAddress, &pData, &cbReturned)
        && (cbReturned == sizeof(INT)) ) {
            // if we get WTSActive we're in the active session, otherwise we assume we're not in the active session (WTSDisconnected)
            fActiveSession = (*((INT *)pData) == WTSActive) ? true : false;
    }

    PWTS_CLIENT_ADDRESS pWTSCA = (PWTS_CLIENT_ADDRESS)pData;

    char address[100]= {0};
    sprintf(address, "address:%d.%d.%d.%d",pWTSCA->Address[2],pWTSCA->Address[3],pWTSCA->Address[4],pWTSCA->Address[5]);
    MessageBoxA(NULL, address, "WTSClientAddress", MB_OK);

    判断是否远程登录  

          GetSystemMetrics(SM_REMOTESESSION);