-#define GTK_VPANED(obj) (GTK_CHECK_CAST ((obj), GTK_TYPE_VPANED, GtkVPaned))
-#define GTK_VPANED_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GTK_TYPE_VPANED, GtkVPanedClass))
-#define GTK_IS_VPANED(obj) (GTK_CHECK_TYPE ((obj), GTK_TYPE_VPANED))
-#define GTK_IS_VPANED_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GTK_TYPE_VPANED))
-#define GTK_VPANED_GET_CLASS(obj) (GTK_CHECK_GET_CLASS ((obj), GTK_TYPE_VPANED, GtkVPanedClass))
+#define GTK_VPANED(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_VPANED, GtkVPaned))
+#define GTK_VPANED_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_VPANED, GtkVPanedClass))
+#define GTK_IS_VPANED(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_VPANED))
+#define GTK_IS_VPANED_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_VPANED))
+#define GTK_VPANED_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_VPANED, GtkVPanedClass))