comctl32: Update progress bar only if it moves
bunglehead at gmail.com
Mon Mar 14 16:48:55 CDT 2011
On 3/15/2011 00:16, Maarten Lankhorst wrote:
> Hopefully helps a little with lord of the rings online installer. It
> seems to be fanatical about updating the position, which may result in
> too many unnecessary redraws.
Patch is wrong. This is inefficient but it's how native control works,
it invalidates progress bar no matter what if position is changed. I
tested so far PBM_DELTAPOS, PBM_SETPOS, PBM_STEPIT.
So this change can break subclass processing for example, when
application expects WM_PAINT.
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