[Bug 10531] Windows Calculator: Color in buttons missing

http://bugs.winehq.org/show_bug.cgi?id=10531

--- Comment #9 from Andre Wisplinghoff   2008-02-17 17:02:56 ---
OK, I've got the patch ready, so far.

However in my opinion MSDN documentation isn't entirely correct. WinXP Calc
sends CDRF_SKIPDEFAULT in response to the CDDS_PREPAINT notification. According
to the documentation this means that the control should not do any drawing at
all. But: I tried it like that and the result was, that there was colored text
without the surroundings of buttons (frame etc).

So in my current implementation the button sends CDDS_PREPAINT after the frame
was drawn, but before the label is drawn. If CDRF_SKIPDEFAULT is send in
response, the label isn't drawn by the control.

If somebody has an explanation for this other than MSDN being incorrect, please
let me know.
Otherwise I'm going to send in the patch on Tuesday.