[Bug 17886] Toolbar flicker (TB_HIDEBUTTON always redraws)

http://bugs.winehq.org/show_bug.cgi?id=17886

--- Comment #2 from Aled Hughes   2009-03-29 16:24:42 ---
Created an attachment (id=20193)
 --> (http://bugs.winehq.org/attachment.cgi?id=20193)
Test program for flickering toolbar

Added source for basic win32 app that creates a toolbar and issues a
TB_HIDEBUTTON message on WM_MOUSEMOVE. On my system, this makes the toolbar
flicker like crazy (may not be so noticeable on newer gfx cards).