[Bug 9969] OPAS shows error boxes when hovering over calendar item

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=9969





--- Comment #4 from Mikolaj Zalewski <mikolaj.zalewski at gmail.com>  2007-10-12 13:32:45 ---
The window is created without WS_POPUP nor WS_CHILD so CreateWindowEx adds
WS_CAPTION (the parameters to CreateWindowEx are
WS_CLIPSIBLINGS|WS_CLIPCHILDREN, WS_EX_TOPMOST|WS_EX_NOPARENTNOTIFY). This
makes the window managed in CreateWindow - before WM_CREATE is sent. After
CreateWindowEx returns the application uses SetWindowLong to set the
style/exStyle to the same values it passed to CreateWindowEx what clear the
WS_CAPTION but the window is already managed and stays so.

Later the application seems to process the WM_NCCALCSIZE and add a 16px
nonclient area at the top to draw a caption but that probably doesn't affect
this problem.


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