Re: Heads-up: Potentially breaking changes to the GDK drawing model pushed

[Jean Brefort <jean brefort normalesup org>]

Le samedi 21 juin 2014 à 09:55 -0400, Paul Davis a écrit :
> On Sat, Jun 21, 2014 at 9:44 AM, Jean Brefort
> <jean brefort normalesup org> wrote:
>         Both abiword and gnumeric do something like:
>         
>         cr = gdk_cairo_create(win);
>         ...do some drawing
>         then relase the cairo.
>         
>         Will this still work if we use
>         
>         gdk_window_begin_paint_rect (win, rect);
>         cr = gdk_cairo_create (win);
>         ...do some drawing
>         gdk_window_end_paint (win);
>
>
> you're drawing on the window outside of an expose/draw event?

Yes, because using draw events presents serious performance issues.

Jean