Re: user32: Enforce that surfaces are flushed after ReleaseDC.

[Sebastian Lackner]

On 02.03.2015 13:44, Alexandre Julliard wrote:
> Sebastian Lackner <sebastian(a)fds-team.de> writes:
> > @@ -1116,6 +1116,7 @@ HDC WINAPI GetWindowDC( HWND hwnd )
> >   */
> >  INT WINAPI ReleaseDC( HWND hwnd, HDC hdc )
> >  {
> > +    flush_window_surfaces( FALSE );
> >      return release_dc( hwnd, hdc, FALSE );
> >  }
>
> I don't think we can afford to do that, we'd be flushing constantly.

Do you have a better idea how to solve that? Even the wine code internally relies on that,
see for example dlls/comctl/animate.c:ANIMATE_AnimationThread.