The TAB key, arrow keys, and accelerator keys do not work as expected when an ActiveX control is the parent window of a modeless dialog box or of a propertysheet window (187988)

MORE INFORMATION

Sample Code

   // Handle to the Windows Message hook. It can be a global variable or a
   // member variable in your CPropertySheet-derived class.
   HHOOK hHook = NULL;



   // Hook procedure for WH_GETMESSAGE hook type.
   LRESULT CALLBACK GetMessageProc(int nCode, WPARAM wParam, LPARAM lParam)
   {
      // Switch the module state for the correct handle to be used.
      AFX_MANAGE_STATE(AfxGetStaticModuleState( ));



      // If this is a keystrokes message, translate it in controls'
      // PreTranslateMessage().
      LPMSG lpMsg = (LPMSG) lParam;
      if( (nCode >= 0) &&
         PM_REMOVE == wParam &&
         (lpMsg->message >= WM_KEYFIRST && lpMsg->message <= WM_KEYLAST) &&
         AfxGetApp()->PreTranslateMessage((LPMSG)lParam) )
         {
         // The value returned from this hookproc is ignored, and it cannot
         // be used to tell Windows the message has been handled. To avoid
         // further processing, convert the message to WM_NULL before
         // returning.
         lpMsg->message = WM_NULL;
         lpMsg->lParam = 0L;
         lpMsg->wParam = 0;
         }



      // Passes the hook information to the next hook procedure in
      // the current hook chain.
      return ::CallNextHookEx(hHook, nCode, wParam, lParam);
   }



   // Declare and define the following two functions:
   BOOL CModelessPropertySheet::OnInitDialog()
   {
      CPropertySheet::OnInitDialog();

      // Install the WH_GETMESSAGE hook function.
      hHook = ::SetWindowsHookEx(
         WH_GETMESSAGE,
         GetMessageProc,
         AfxGetInstanceHandle(),
         GetCurrentThreadId());
      ASSERT (hHook);



      return TRUE;   // Return TRUE unless you set the focus to a control.
                     // EXCEPTION: OCX Property Pages should return FALSE.


   }



   void CModelessPropertySheet::OnClose()
   {
      // Uninstall the WH_GETMESSAGE hook function.
      VERIFY (::UnhookWindowsHookEx (hHook));



      CPropertySheet::OnClose();

   }
				

Steps to Reproduce the Problem

1. Select the MFC ActiveX ControlWizard to create an ActiveX control. Accept all the default settings.
2. Display a modeless dialog box or propertysheet window when double-clicking inside the control.