Re: CDialogBar resize problem

"Scott McPhillips [MVP]" <org-dot-mvps-at-scottmcp>
Wed, 19 Jul 2006 08:48:30 -0400
Abubakar wrote:


I'm working on a SDI application using MFC ( vc2k5). I have a class that
inherits from CDialogBar and is called CDlgbar2. Inside this bar I place a
dialog that has a label and a dropdown (combo box) on it. Now I want to
resize the drop down so that its width expands and contracts as the main
application window is resized. For this I placed a ON_WM_SIZE() and wrote
(overrided??) CDlgbar2::OnSize. The problem is that OnSize doesnt get called
sometimes. That is, it works *after* the application has expanded to a
certain width, like lets for example say that the magic width is X, when the
width is >X the OnSize gets called but if its < X it doesnt get called. Its
really strange, as there is some code controlling this behavior. Is it some
feature of the cdialogbar class or what am I missing?


Review the documentation for WM_SIZE and WM_SIZING. WM_SIZE is only
sent "after" the size change. WM_SIZING is sent "during" the size change.

Scott McPhillips [VC++ MVP]

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