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Cory Albrecht
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May 20, 2003 - 2:29 PM
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Hello,
I actually noticed this a while ago, but haven’t had the time to look into it.
I have used a CExtControlBar object to be the parent of a window derived from CTreeCtrl, instead of my old method of hooking the OnSize and OnPaint methods to split the child are of a CMainFrame window between the tree control and an mdiclient window.
The problem is, when with the tree contral as a child of the CExtControlBar the scroll bars for the tree never appear when there are too many nodes to display (vertical scroll bar) or when the name of a node is too long for the tree control’s width (horizontal scrollbar).
I tried explicitly setting WS_HSCROLL and WS_VSCROLL when calling Create(), and I tried calling ShowScrollBar() in several places but the scrollbars never, ever appear.
Why is this?
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Sergiy Lavrynenko
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May 21, 2003 - 9:35 AM
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Hi,
Please verify your tree-control class is not based on CExtWRB template type. This template uses non-client area to draw dark thin rectangle (like VS.NET does). But scrollbars in the tree controls are part of non-client area. So CExtWRB simply kills them :-) CExtWRB is good for using with CDialog-like windows inside resizable bar.
If my guess is incorrect you may send me a letter to l_sergiy@fossware.com with your project and I will help you.
Regards, Sergiy.
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