Re: How I can do Double Buffer without OpenGL Ext?

[Gustavo Rojas <grojas icc gmail com>]

Thanks for everything friends, My problem was that I was drawing
directly over draw area, then with gtk_widget_queue_draw (), I achieved
to solve my problem.

Regards

Gustavo Rojas



El jue, 11-02-2010 a las 20:21 +0200, Claudio Saavedra escribiÃ:
> El jue, 11-02-2010 a las 11:41 -0300, Gustavo Rojas escribiÃ:
> > Hi,
> >
> > I'm working in avoid the flicker when i paint my widget draw area. Then my
> > questions are the following:
> > How i can to do double buffer?
>
> Strictly speaking, all GTK+ widgets have double buffer support enabled
> by default (see the documentation for GtkWidget:double-buffered,
> gtk_widget_set_double_buffered() and [1], for an overview of the way
> double-buffer works in GTK+).
>
> Chances are that you are not painting in your expose event callback, or
> that you are calling this callback directly instead of invalidating the
> widget or region to redraw (see gdk_window_invalidate_region() and
> gtk_widget_queue_draw()).
>
> If you still have issues, feel free to post a small test case, showing
> your issue.
>
> Claudio
>
> [1]
> http://library.gnome.org/devel/gtk/unstable/chap-drawing-model.html#double-buffering
>
>
>
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