[Bug 6311] Civilization Call to Power Installer crashes on launch

http://bugs.winehq.org/show_bug.cgi?id=6311

--- Comment #26 from EA Durbin   2008-03-12 01:01:05 ---
Created an attachment (id=11335)
 --> (http://bugs.winehq.org/attachment.cgi?id=11335)
bug demonstration

the addition of the !valid_rects in the client_changed assignment causes it to
enter into the  if (frame_changed || client_changed) block as client_changed is
now set because !valid_rects is true, whereas before this commit it never
entered into this if statement.

skipping this chunk of code within this if statement also fixes my application
-----
        if (!is_desktop_window(win))
            offset_region( win_rgn, -client_rect->left, -client_rect->top );
        if (exposed_rgn)
        {
            union_region( exposed_rgn, exposed_rgn, win_rgn );
            if (win_rgn != old_vis_rgn) free_region( win_rgn );
        }
        else
        {
            exposed_rgn = win_rgn;
            if (win_rgn == old_vis_rgn) old_vis_rgn = NULL;
        }
----