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10/27/2008 at 06:34AM PDT, ID: 23850306
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8.4

Command routing problem with CMFCMenuBar

Asked by Zoppo in Windows MFC Programming, Microsoft Visual C++

Tags: Microsoft, MFC Feature Pack, VS 2008

Hi everybody,

when I create a new MDI application using extended features (especially 'menu bar') from MFC Feature Pack for VS 2008 I encounter following problem: When the view has set the mouse capture (SetCapture) commands from menues with shortcut are executed allthough they shouldn't be available.

For testing this I just created a new MDI project using a menu bar and implemented WM_LBUTTONUP/DOWN handlers to set capture like this:

void CTestView::OnLButtonDown(UINT nFlags, CPoint point)
{
      CView::OnLButtonDown(nFlags, point);
      ::SetCapture( m_hWnd );
}

void CTestView::OnLButtonUp(UINT nFlags, CPoint point)
{
      CView::OnLButtonUp(nFlags, point);
      ::SetCapture( NULL );
}

Now, while mouse button is pressed the view captures the mouse input, but I'm able to i.e. open the 'Open File' dialog by pressing the shortcut 'CTRL-O'. If I do the same in an application without CMFCMenuBar this doesn't happen (I can simulate this by simply commenting out all lines in my CMainFrame class which handle 'm_wndMenuBar' creation/docking).

I debugged the problem and could see that in both cases a call to '::TranslateAccelerator' is done in 'CMDIFrameWnd::PreTranslateMessage', in case I use CMFCMenuBar this causes the 'ID_FILE_OPEN' handler is called from here, if I don't use CMFCMenuBar this doesn't happen.

Does anybody know about a possibility to get that 'old-style' kind of command routing with use of CMFCMenuBar?

Thanks in advance,

ZOPPO
[+][-]10/27/08 07:46 AM, ID: 22813136

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[+][-]10/28/08 06:40 AM, ID: 22821618

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About this solution

Zones: Windows MFC Programming, Microsoft Visual C++
Tags: Microsoft, MFC Feature Pack, VS 2008
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Solution Provided By: Zoppo
Participating Experts: 2
Solution Grade: A
 
 
[+][-]10/31/08 01:31 PM, ID: 22853866

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[+][-]11/01/08 01:41 AM, ID: 22856066

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[+][-]11/02/08 05:30 AM, ID: 22861281

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[+][-]11/05/08 08:45 AM, ID: 22887197

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