add: if (!props->bvw) g_error ("Error: %s", err ? err->message : "bla");
context: totem_properties_page_init(TotemPropertiesPage *props){	BonoboPropertyBag *pb;	GError *err = NULL;	props->bvw = BACON_VIDEO_WIDGET (bacon_video_widget_new			(-1, -1, TRUE, &err));	//FIXME	g_signal_connect (G_OBJECT (props->bvw),			"got-metadata",			G_CALLBACK (on_got_metadata_event),			props);	props->vbox = bacon_video_widget_properties_new ();	gtk_widget_show_all (props->vbox);	props->props = BACON_VIDEO_WIDGET_PROPERTIES (props->vbox);	bonobo_control_construct (BONOBO_CONTROL (props), props->vbox);	pb = bonobo_property_bag_new (			(BonoboPropertyGetFn) get_property,			(BonoboPropertySetFn) set_property, props);	bonobo_property_bag_add (pb, "URI", PROP_URI, BONOBO_ARG_STRING,			NULL, _("URI currently displayed"), 0);	bonobo_control_set_properties (BONOBO_CONTROL (props),			BONOBO_OBJREF (pb), NULL);	bonobo_object_release_unref (BONOBO_OBJREF (pb), NULL);}