[Bug 15549] Colobot Demo installer does not fully redraw installation window during install progress phase

http://bugs.winehq.org/show_bug.cgi?id=15549

--- Comment #4 from Dmitry Timoshkov   2008-10-08 04:41:37 ---
(In reply to comment #3)
> Now an easy solution is best to render all wine windows using off screen
> extensions than copy them to the screen.  This consumes a little more memory,
> but actually saves processor time in redraws and properly replicates Win32
> default behavior.

Wine never renders the windows, nor copies them from an off screen memory.
All Wine does is just generates the WM_PAINT messages which are either
handled by applications on their own or passed to default handlers.