[Bug 13112] New: comctl32 trackbar setPos() should not call oncustomdraw if value hasn't changed

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=13112

           Summary: comctl32 trackbar setPos() should not call oncustomdraw
                    if value hasn't changed
           Product: Wine
           Version: CVS/GIT
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: comctl32
        AssignedTo: wine-bugs at winehq.org
        ReportedBy: jaz at pastnotecut.org


Created an attachment (id=12893)
 --> (http://bugs.winehq.org/attachment.cgi?id=12893)
patch against comctl32 for the setpos bug

The SetPos() function of the trackbar component of comctl32 is calling the
OnCustomDrawMessage even if it doesn't change the value.



This wouldn't be a problem per se, but in my application I was doing a setFocus
inside the oncustomdraw, as well as doing the setpos in a timer.
This caused all the buttons in the UI to not operate, because the timer took
precedence, and the focus no longer kept at the supposed place.
I've already fixed this in my application (since i can do the check), but could
affect other applications.

I attach the patch that i've tested which solves it.


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