On Sun, Jun 24, 2007 at 09:48:01AM +0200, Andrea Zagli wrote: > i have GObject A and GObject B; B is a A's subclass > > obj_a = a_new (); > obj_b = b_new (); > > (a_new() and b_new() return GObject) > > when i call IS_OBJECT_A (obj_b) it returns TRUE: why?
Because obj_b *is* also an instance of A. That's the whole point of subclassing. To check the exact type you can get it with G_TYPE_FROM_INSTANCE and compare. However, in most cases needing this means there's something wrong with your design. > is it a bug? or is it normal? Show me a single object system implementation that behaves differently in this regard... Yeti -- http://gwyddion.net/ _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
