Cairo Surface to Gdk Pixbuf
Gdk.pixbuf_get_from_surface(surface, 0, 0, surface.get_width(), surface.get_height());
Cairo Context to Gdk Pixbuf
Gdk.pixbuf_get_from_surface(context.get_target(), 0, 0, context.get_target().get_width(), context.get_target().get_height());
That is all…