On Fri, Jul 20, 2012 at 10:15:54AM +0200, Miroslav Rajcic wrote: > Not sure, but perhaps GTK_IS_WIDGET(widget) macro would help.
If you have the pointer to a GObject instance and want to know whether it is an instance of GtkWidget (including subclasses) then GTK_IS_WIDGET() is the right thing to use. But if you use this macro with a random pointer (e.g. one pointing to a memory location where some GObject might be some time ago) do not expect anything more useful than a CRITICAL error/crash. To deal with objects that may or may not exist use one of the several mechanisms (weak pointers/weak refs/destroy callbacks/...) for keeping track of the object existence. And, generally, use these mechanisms to avoid even the possibility of dangling pointers in your code. Yeti _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
