gtk_widget_get_snapshot & openGL

[Benoît ROUSSIN <benoit europe altair com>]

Hi,

I'm trying to use this "gtk_widget_get_snapshot" on a openGL widget, 
without success. I only get a black snapshot.
I've tried to use both gtkglarea and gtkglext, single and double 
buffered, and still get a black snapshot.
If I get a snapshot of the main widget of the application, I get a nice 
snapshot with menus, etc.., but without openGL widget area.

Any ideas ?

Regards,
Benoît.