FIX: Assertion with an Insertable OLE Control

MORE INFORMATION

• GetContainer calls GetDocument on the client item.
• The client item asserts that it is valid.
• The client item's AssertValid asserts that its document is valid.
• The document's AssertValid asserts that its view is valid.
• The view's AssertValid asserts that the window is valid.
• The window asserts that its HWND is in the current module's HWND map.

Steps To Reproduce the Problem

1. Create a Control using the ControlWizard in Visual C++ 4.0. Make sure you set the "Available in InsertObject Dialog" option.
2. To this control, add a WM_LBUTTONDOWN handler as follows:

         void CYourCtrl::OnLButtonDown(UINT nFlags, Cpoint point)
         {
            LPOLECONTAINER pContainer;
            if(SUCCEEDED(GetClientSite()->GetContainer(&pContainer)))
            {
               AfxMessageBox("We have access to IOleContainer interface");
            }
            if(pContainer)pContainer->Release();
               COleControl::OnLButtonDown(nFlags,point);
         }
   							

3. Build the control.
4. Create a default MFC OLE Container application.
5. Build and run the container.
6. Click InsertObject on the Edit menu to insert your OLE Control.
7. Click on the control. The assertion error occurs.