-typedef struct _GtkStatusbar GtkStatusbar;
-typedef struct _GtkStatusbarClass GtkStatusbarClass;
-typedef struct _GtkStatusbarMsg GtkStatusbarMsg;
+#define GTK_TYPE_STATUSBAR (gtk_statusbar_get_type ())
+#define GTK_STATUSBAR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_STATUSBAR, GtkStatusbar))
+#define GTK_STATUSBAR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_STATUSBAR, GtkStatusbarClass))
+#define GTK_IS_STATUSBAR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_STATUSBAR))
+#define GTK_IS_STATUSBAR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_STATUSBAR))
+#define GTK_STATUSBAR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_STATUSBAR, GtkStatusbarClass))