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Forums » Prof-UIS General Discussion » CExtNCW and CMDIChildWnd Collapse All
Subject Author Date
Emmanuel Verguet Oct 8, 2007 - 7:37 AM

On Nov 9, 2006 - 11:11 AM, same subject, you said that "The CExtNCW class is not compatible with the Windows MDI interface". Is it always true ?


Emmanuel Verguet Oct 10, 2007 - 12:51 AM

Ok, I sent to you this morning the sources.

Technical Support Oct 9, 2007 - 11:26 AM

We confirm this problem with incorrect reposition of the frame window in 2.80, but it occurs only on some computers - not on any computer. Could you please send your test project to

Emmanuel Verguet Oct 9, 2007 - 1:55 AM

I discovered this morning that the problem exists only when I click on the close button (crossbar) which is on the title bar. When using File/Close menu, it’s ok. Anyway, I have a simple sample (.exe and/or sources) if you want them. I’m using CExtPaintManagerOffice2007_R2_LunaBlue theme, Prof-UIS v2.80, XP pro.

And, I post two messages, and your answer is not in the good one ;-)

Technical Support Oct 8, 2007 - 1:11 PM

We used the MDI sample for testing the AfxMessageBox()-related problem. We modified the CMDIApp::OnAppAbout() method in it so that a message box will be displayed instead of the modal About dialog:

void CMDIApp::OnAppAbout()
      ::AfxMessageBox( _T("This is AfxMessageBox().") );
We failed to see any location changes of the main frame window. Could you please send us a screenshot demonstrating the problem? Of course, if you demonstrate how to reproduce the problem using any of our samples, that would help us a lot..