Invoke 오버라이드

STDMETHODIMP CIEHlprObj::Invoke(DISPID dispidMember, REFIID riid,

                                LCID lcid, WORD wFlags,

                                DISPPARAMS* pDispParams,

                                VARIANT* pvarResult,

                                EXCEPINFO*  pExcepInfo, UINT* puArgErr)

{

   USES_CONVERSION;

   strstream strEventInfo;



   if (!pDispParams)

      return E_INVALIDARG;



   //

   // Get the current URL.

   //  

   LPOLESTR lpURL = NULL;

   m_spWebBrowser2->get_LocationURL(&lpURL);



   switch (dispidMember)

   {

      //

      // The parameters for this DISPID are as follows:

      // [0]: Cancel flag  - VT_BYREF|VT_BOOL

      // [1]: HTTP headers - VT_BYREF|VT_VARIANT

      // [2]: Address of HTTP POST data  - VT_BYREF|VT_VARIANT

      // [3]: Target frame name - VT_BYREF|VT_VARIANT

      // [4]: Option flags - VT_BYREF|VT_VARIANT

      // [5]: URL to navigate to - VT_BYREF|VT_VARIANT

      // [6]: An object that evaluates to the top-level or frame

      //      WebBrowser object corresponding to the event

      //

      case DISPID_BEFORENAVIGATE2:

         strEventInfo << "BeforeNavigate2: ";



         if (pDispParams->cArgs >= 5 &&

             pDispParams->rgvarg[5].vt == (VT_BYREF|VT_VARIANT))

         {

            CComVariant varURL(*pDispParams->rgvarg[5].pvarVal);

            varURL.ChangeType(VT_BSTR);



            strEventInfo << OLE2T(varURL.bstrVal);

         }

         else

            strEventInfo << "NULL";



         strEventInfo << ends;

         break;



      //

      // The parameters for this DISPID:

      // [0]: URL navigated to - VT_BYREF|VT_VARIANT

      // [1]: An object that evaluates to the top-level or frame

      //      WebBrowser object corresponding to the event

      //

      case DISPID_NAVIGATECOMPLETE2:

         if (pDispParams->rgvarg[0].vt == (VT_BYREF|VT_VARIANT))

         {

            CComVariant varURL(*pDispParams->rgvarg[0].pvarVal);

            varURL.ChangeType(VT_BSTR);

  

            strEventInfo << "NavigateComplete2: "

                         << OLE2T(varURL.bstrVal)

                         << ends;

         }

         break;



      //

      // The parameters for this DISPID:

      // [0]: New status bar text - VT_BSTR

      //

      case DISPID_STATUSTEXTCHANGE:

         LPOLESTR lpStatusText;



         m_spWebBrowser2->get_StatusText(&lpStatusText);

         strEventInfo << "StatusTextChange: ";



         if (!strcmp(OLE2T(lpStatusText), ""))

            strEventInfo << "NULL";

         else

            strEventInfo << OLE2T(lpStatusText);



         strEventInfo << ends;

         break;



      //

      // The parameters for this DISPID:

      // [0]: Maximum progress - VT_I4

      // [1]: Amount of total progress - VT_I4

      //

      case DISPID_PROGRESSCHANGE:

         strEventInfo << "ProgressChange: ";



         if (pDispParams->cArgs == 0)

            strEventInfo << "NULL";

         else

         {

            if (pDispParams->rgvarg[0].vt == VT_I4)

               strEventInfo << pDispParams->rgvarg[0].lVal;



            if (pDispParams->cArgs > 1 &&

                pDispParams->rgvarg[1].vt == VT_I4)

            {

               strEventInfo << ", " << pDispParams->rgvarg[1].lVal;

            }

         }



         strEventInfo << ends;

         break;



      case DISPID_DOCUMENTCOMPLETE:

         strEventInfo << "DocumentComplete" << ends;

         break;



      case DISPID_DOWNLOADBEGIN:

         strEventInfo << "DownloadBegin" << ends;

         break;



      case DISPID_DOWNLOADCOMPLETE:

         strEventInfo << "DownloadComplete" << ends;

         break;



      //

      // The parameters for this DISPID:

      // [0]: Enabled state - VT_BOOL

      // [1]: Command identifier - VT_I4

      //

      case DISPID_COMMANDSTATECHANGE:

         strEventInfo << "CommandStateChange: ";



         if (pDispParams->cArgs == 0)

            strEventInfo << "NULL";

         else

         {

            if (pDispParams->rgvarg[0].vt == VT_BOOL)

            {

               strEventInfo << ((pDispParams->rgvarg[0].boolVal ==

                                 VARIANT_TRUE) ? "True" : "False");

            }



            if (pDispParams->cArgs > 1 &&

                pDispParams->rgvarg[1].vt == VT_I4)

            {

               strEventInfo << ", " << pDispParams->rgvarg[1].lVal;

            }

         }



         strEventInfo << ends;

         break;



      case DISPID_NEWWINDOW2:

         strEventInfo << "NewWindow2" << ends;

         break;



      //

      // The parameters for this DISPID:

      // [0]: Document title - VT_BSTR

      //

      case DISPID_TITLECHANGE:

         strEventInfo << "TitleChange: ";



         if (pDispParams->cArgs > 0 &&

             pDispParams->rgvarg[0].vt == VT_BSTR)

         {

            strEventInfo << OLE2T(pDispParams->rgvarg[0].bstrVal);

         }

         else

         {

            strEventInfo << "NULL";

         }



         strEventInfo << ends;

         break;



      //

      // The parameters for this DISPID:

      // [0]: Name of property that changed - VT_BSTR

      //

      case DISPID_PROPERTYCHANGE:

         strEventInfo << "PropertyChange: ";



         if (pDispParams->cArgs > 0 &&

             pDispParams->rgvarg[0].vt == VT_BSTR)

         {

            strEventInfo << OLE2T(pDispParams->rgvarg[0].bstrVal);

         }

         else

         {

            strEventInfo << "NULL";

         }



         strEventInfo << ends;

         break;



      //

      // The parameters for this DISPID:

      // [0]: Address of cancel flag - VT_BYREF|VT_BOOL

      //

      case DISPID_QUIT:

         strEventInfo << "Quit" << ends;



         ManageConnection(Unadvise);

         m_dlgEvents.DestroyWindow();

         break;



      default:

         strEventInfo << "Unknown Event" << dispidMember << ends;

         break;

   }



   m_dlgEvents.AddEventToList(strEventInfo.str());



   return S_OK;

}

이게 오버라이드 한 예제구요.. cpp 에 추가 하시구 헤더파일 클래스 안에다가

STDMETHOD(Invoke)(DISPID dispidMember, REFIID riid,

                     LCID lcid, WORD wFlags,

                     DISPPARAMS * pdispparams, VARIANT * pvarResult,

                     EXCEPINFO * pexcepinfo, UINT * puArgErr);

이렇게 추가 해주시면 됩니다..