adaptions for latest dc changes

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@50360 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/ole/activex.cpp

@@ -1123,8 +1123,9 @@ void wxActiveXContainer::OnPaint(wxPaintEvent& WXUNUSED(event))
         ::InvalidateRect(m_oleObjectHWND, NULL, false);
 #endif
         RECTL *prcBounds = (RECTL *) &posRect;
+        wxMSWDCImpl *msw = wxDynamicCast( dc.GetImpl() , wxMSWDCImpl );
         m_viewObject->Draw(DVASPECT_CONTENT, -1, NULL, NULL, NULL,
-            (HDC)dc.GetHDC(), prcBounds, NULL, NULL, 0);
+            (HDC)msw->GetHDC(), prcBounds, NULL, NULL, 0);
     }
 }