[Bug 2057] When textbox is told to scroll to end of text, it doesn't

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=2057





--- Comment #17 from Dylan Smith <dylan.ah.smith at gmail.com>  2008-10-19 03:41:35 ---
Created an attachment (id=16733)
 --> (http://bugs.winehq.org/attachment.cgi?id=16733)
richedit: Implement WM_SETREDRAW with DefWindowProc

After doing some more tests with native riched20, and the relay trace, I found
that it was using InvalidateRect and UpdateWindow while redraw is disabled.  I
also found that the DefWindowProc was being used in native richedit, but not in
Wine.  It seems as if redraw is simply done using DefWindowProc, which just
clears the WS_VISIBLE flag to avoid redrawing the window.

When the richedit control becomes visible again by WM_SETREDRAW, it will be
repainted properly, so it will fix the bug my last patch introduced by making
sure the scrollbar is repainted.


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