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preventing view from closing

Posted on 2002-07-25
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Last Modified: 2013-12-03
Hi

I'm writing an MDI application using MFC and I want to prevent an MDI child window from closing when there is a wrong value entered in one of the controls.

I tried catching WM_CLOSE of the view, but it doesn't work, the window just closes without my OnClose getting invoked.

Does anyone know how to solve this? There mustn't be any possibility left to close that window or quit the application (except killing the task ;-) when my view doesn't want to close.

Thanks
Overmind
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Question by:Overmind
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4 Comments
 
LVL 86

Expert Comment

by:jkr
ID: 7177370
Try to override 'DestroyWindow()' for your view class and return FALSE if you don't want it to close.
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LVL 1

Author Comment

by:Overmind
ID: 7177616
DestroyWindow() doesn't get called either.
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Accepted Solution

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RolandAZ earned 250 total points
ID: 7183719
Hi Overmind,

Override your CChildFrame::OnClose or CChildFrame::DestroyWindow depending on your needs.
OnClose subsequently calls DestroyWindow.

You have to explicitly call your CView::DestroyWindow that's why it's not getting called.


Hope that's what you require!
Have fun!
Roland

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Author Comment

by:Overmind
ID: 7293595
CChildFrame::OnClose doesn't seem to work, but CChildFrame::DestroyWindow works perfectly.
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