[Bug 2624] In dialogs, an incorrect extra WM_ERASEBKGND is sent after WM_PAINT

http://bugs.winehq.org/show_bug.cgi?id=2624





--- Comment #12 from Mikolaj Zalewski <mikolaj.zalewski(a)gmail.com>  2007-10-15 21:21:30 ---
Created an attachment (id=8598)
 --> (http://bugs.winehq.org/attachment.cgi?id=8598)
patch

Now I think the top-level windows aren't special - when the window is
invalidated manually the WM_ERASEBKGND is generated during the BeginPaint().
However it looks like the Windows equivalent of expose on a top-level window
does a RedrawWindow(..., RDW_ERASENOW). This patch seems to help IrfanView and
partially GeoInfo - what is drawn after the PeekMessage is shown (that is all
except for the background and the legend). Tomorrow I will try to make some
message sequence tests to see if it is correct.


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