Hi, David, 2011/4/8 David NeÄas <yeti@xxxxxxxxxxxxxxx>: > On Fri, Apr 08, 2011 at 01:17:52AM -0700, Igor Korot wrote: >> I need to change the markup text in the label conditionally in the loop. >> However, I'm getting this on the second call of gtk_label_set_markup(): >> >> (mini2440gtk:19672): GLib-GObject-WARNING **: invalid cast from >> `(null)' to `GObject' >> >> (mini2440gtk:19672): GLib-GObject-CRITICAL **: g_object_freeze_notify: >> assertion `G_IS_OBJECT (object)' failed >> >> (mini2440gtk:19672): GLib-GObject-WARNING **: invalid cast from >> `(null)' to `GObject' >> >> (mini2440gtk:19672): GLib-GObject-CRITICAL **: g_object_notify: >> assertion `G_IS_OBJECT (object)' failed >> >> (mini2440gtk:19672): GLib-GObject-WARNING **: invalid cast from >> `(null)' to `GtkWidget' >> >> (mini2440gtk:19672): Gtk-CRITICAL **: gtk_widget_queue_resize: >> assertion `GTK_IS_WIDGET (widget)' failed >> >> (mini2440gtk:19672): GLib-GObject-WARNING **: invalid cast from >> `(null)' to `GObject' >> >> (mini2440gtk:19672): GLib-GObject-CRITICAL **: g_object_thaw_notify: >> assertion `G_IS_OBJECT (object)' failed >> >> I checked and the window and the text are both not NULL. >> >> Is it possible to do it this way? Or I just need to dereference something? > > gtk_label_set_markup() can be called an arbitrary number of times. > You do not need to *dereference* anything. ÂYou may need to reference > the label â if it's been removed from the container it was in. > > Otherwise the only conclusion that can be made from this is that you > code is buggy. > > Run it with G_DEBUG=fatal-warnings to obtain a stack trace at the first > warning and see what exactly gets the NULL pointer instead of an object. $ ./<program_name> G_DEBUG=fatal-warnings Right? Thank you. > > Yeti > > _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list
