IDispatchPtr spRet(m_ocx.Cal(_T("Mx_GetAllTwinkleEnt")),false);

    IMxDrawResbufPtr spResbuf;
    spRet->QueryInterface(&spResbuf);

    CString sRet = spResbuf->AtString(0); 
    if(sRet == _T("Ok") )
    {
        CString sT;
        sT.Format(_T("有%d个实体闪烁"),spResbuf->Count -1);
        AfxMessageBox(sT);
    }