Hi, [EMAIL PROTECTED] writes:
> I've just started using GTK and GtkGLArea imparticular, and I've got a problem with >signals... > > I have a callback that is responsible for redrawing the glarea widget when it >receives an "expose_event" signal, which works fine when just resizing the > window etc. But I also want a mouse motion callback to trigger a redraw of the >widget, in much the same as you can use glutPostRedisplay() with GLUT. So I tried >using gtk_signal_emit_by_name(GTK_OBJECT(gd.gl3dview), "expose_event", NULL) > but this gives a segfault. When I looked at the example code for the lightwave >object viewer it uses gtk_widget_draw() to accomplish the redraw. > > Why is it that I can't simply have the glarea widget signal itself that it is in >need of a refresh? Isn't a widget allowed to signal itself? if you would emit the signal correctly it would probably work (you missed to pass a valid GdkEvent to signal_emit). However the correct way of emitting an expose event is to use gtk_widget_queue_draw() or gtk_widget_queue_draw_area(). Salut, Sven _______________________________________________ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
