Bug with partial paint of progress bar

If WindowBlinds-skinned progress bar is partially obscured from the left, it seems that WindowBlinds uses leftmost visible boundary instead of true (obscured) left boundary of progress bar when computing the ratio that must be filled - so visible ratio will distort.

This happens if progress bar is partially offscreen or some window above is blocking its partially from the left.

Is quite visible, if you take, say, browser download window in process of downloading, say in 50% progress, and drag it partially left under the border of the screen - you will see how progress bar will shift indication even if actual progress is unchanged.

This have happened as long as I remember, since first WB 5 version, and still there in latest 5.5
Hope this will be fixed in next WB update.
1,158 views 2 replies
Reply #1 Top

This is a bug in comctl32.dll when drawing progressbars which do not have chunks.

Microsoft fixed this in Windows Vista.

Reply #2 Top
Ah, I see. It indeed does happen only with solid non-chunked bars.

Thanks for clarifying it.