>From the logo example:
/*
* Configure OpenGL-capable visual.
*/
/* Try double-buffered visual */
glconfig = gdk_gl_config_new_by_mode (GDK_GL_MODE_RGB |
GDK_GL_MODE_DEPTH |
GDK_GL_MODE_DOUBLE);
if (glconfig == NULL)
{
g_print ("*** Cannot find the double-buffered visual.\n");
g_print ("*** Trying single-buffered visual.\n");
/* Try single-buffered visual */
glconfig = gdk_gl_config_new_by_mode (GDK_GL_MODE_RGB |
GDK_GL_MODE_DEPTH);
if (glconfig == NULL)
{
g_print ("*** No appropriate OpenGL-capable visual found.\n");
exit (1);
}
}
......
/* Set OpenGL-capability to the widget. */
gtk_widget_set_gl_capability (drawing_area,
glconfig,
NULL,
TRUE,
GDK_GL_RGBA_TYPE);
This function first tries to create a glconfig using double buffered, if fails,
uses single buffer). This works on OS X 10.6 Snow Leopard.
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> Date: Tue, 9 Feb 2010 04:41:12 -0300
> Subject: How I can do Double Buffer whether OpenGl Ext?
> From: grojas....@gmail.com
> To: gtk-app-devel-list@gnome.org
>
> Hi,
>
> I'm trying to do a double buffer with pixbuf and draw area, whether to use
> OpenGL Ext, but i don't know if it is posible or not.
>
> Any idea?
>
> Thanks.
>
> Gustavo R.
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> gtk-app-devel-list@gnome.org
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