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terrym View Drop Down
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Joined: 13 April 2007
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Points: 836 		Post Options Post Options   Thanks (0) Thanks(0)   Quote terrym Quote  Post ReplyReply Direct Link To This Post Topic: General MFC problem
    Posted: 11 September 2007 at 4:19pm
Anybody know what function is called after OnShowWindow() in MFC ???
 
As I need to make sure a window is shown before showing a dialog, currently have in a timer, but this sometimes fails.
 
Any help much appreciated
 
Thank you,
Terry Mancey

email terry@tmancey.ltd.uk | linkedin www.tmancey.ltd.uk | twitter @tmancey
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pascal View Drop Down
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Points: 25 		Post Options Post Options   Thanks (0) Thanks(0)   Quote pascal Quote  Post ReplyReply Direct Link To This Post Posted: 11 September 2007 at 5:37pm
Hi,
I use a workaround for this:
    - I define a member BOOL m_bFirstActivation, initialized with FALSE
    - catch the message WM_ACIVATE - ON_WM_ACTIVATE()
    - toggle m_bFirstActivation in the message method, do the first initialization

void CMainFrame::OnActivate(UINT nState, CWnd* pWndOther, BOOL bMinimized) 
{
	CFrameWnd::OnActivate(nState, pWndOther, bMinimized);
	
	// TODO: Add your message handler code here
	switch( nState )
	{
	case WA_CLICKACTIVE:
	case WA_ACTIVE:
		if( m_bFirstActivation == FALSE )
		{
		   	OnFirstActivation();
			m_bFirstActivation = FALSE; 
		} 
		break;
	case WA_INACTIVE:
		break;
	}	
}
Hope that it will help you. There is may be a better way ...

BR
Pascal
Pascal Verdier
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pascal View Drop Down
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Points: 25 		Post Options Post Options   Thanks (0) Thanks(0)   Quote pascal Quote  Post ReplyReply Direct Link To This Post Posted: 11 September 2007 at 5:40pm
Sorry, i make a mistake:
...
- I define a member BOOL m_bFirstActivation, initialized with TRUE
...
case WA_ACTIVE:
   if( m_bFirstActivation == TRUE )
   {
	OnFirstActivation();
	m_bFirstActivation = FALSE; 
   } 
   break;

 that is
Pascal
Pascal Verdier
Software Engineer Manager
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terrym View Drop Down
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Points: 836 		Post Options Post Options   Thanks (0) Thanks(0)   Quote terrym Quote  Post ReplyReply Direct Link To This Post Posted: 12 September 2007 at 6:13am
Cheers, for that, as much better than timer implementation
Thank you,
Terry Mancey

email terry@tmancey.ltd.uk | linkedin www.tmancey.ltd.uk | twitter @tmancey
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terrym View Drop Down
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Points: 836 		Post Options Post Options   Thanks (0) Thanks(0)   Quote terrym Quote  Post ReplyReply Direct Link To This Post Posted: 12 September 2007 at 7:46am
Found a better implementation, is to start a timer, then in the timer function to have
 
IsWindowVisble()
 
and if not then exit timers
 
Also playing with WM_WINDOWPOSCHANGED
 
Cheers
Terry
 
Thank you,
Terry Mancey

email terry@tmancey.ltd.uk | linkedin www.tmancey.ltd.uk | twitter @tmancey
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terrym View Drop Down
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Points: 836 		Post Options Post Options   Thanks (0) Thanks(0)   Quote terrym Quote  Post ReplyReply Direct Link To This Post Posted: 12 September 2007 at 9:41am
Ok the best method is to handle this in the WM_WINDOWPOSCHANGED message as this happens just after the window has appeared
 
It works perfect now, cheers
Thank you,
Terry Mancey

email terry@tmancey.ltd.uk | linkedin www.tmancey.ltd.uk | twitter @tmancey
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kylechen View Drop Down
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Points: 57 		Post Options Post Options   Thanks (0) Thanks(0)   Quote kylechen Quote  Post ReplyReply Direct Link To This Post Posted: 12 September 2007 at 10:58am
Ever got the same problem here, thank you for reply.
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