Re: WM_MDINEXT issue

From:

"Frank Hickman [MVP]" <fhickman3_NOSP@M_noblesoft.net>

Newsgroups:

microsoft.public.vc.mfc

Date:

Tue, 20 Jun 2006 23:59:32 -0400

Message-ID:

<O6QmFaOlGHA.508@TK2MSFTNGP03.phx.gbl>

"alvin" <alwittta@gmail.com> wrote in message
news:1150858466.863743.307720@g10g2000cwb.googlegroups.com...

I have an MFC MDI application with two CMultiDocTemplate objectsa in
its Application class.
Each contains different child frames, documents and view
classes.Initially, I am displaying the first frame of first
CMultiDocTemplate. From this view I am displaying the second view which
belongs to the second CMultiDocTemplate.
My question is, how can I switch back to my previous view trhat is
belongs to first CMultiDocTemplate.

I am tried with the following code:

CMDIFrameWnd* pFrame =
((CMDIChildWnd*)pApp->m_pMainFrame)->GetMDIFrame();
::SendMessage(pFrame->m_hWndMDIClient, WM_MDINEXT,
(WPARAM)GetParent()->GetSafeHwnd() , (LPARAM) true);

But I am getting an assertion from GETMDIFrame()
I am also using a CSplitterwnd object in the second child frame.
But this is working perfectly if I click on Ctrl + F6

Colud anyone provide me better solution?

Thanks and Regards
Alwitta

First, m_pMainFrame is not a CMDIChildWnd so of course it will assert.

You could try sending the WM_MDINEXT message to m_pMainWnd but it won't work
the way you want. It is pretty much ignored. I would just call
((CMDIFrameWnd*)AfxGetMainWnd())->MDINext();

--
============
Frank Hickman
Microsoft MVP
NobleSoft, Inc.
============
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