-#define GTK_CANVAS_TYPE_CANVAS_RULER (gtk_canvas_ruler_get_type ())
-#define GTK_CANVAS_RULER(obj) (GTK_CHECK_CAST ((obj), GTK_CANVAS_TYPE_CANVAS_RULER, GtkCanvasRuler))
-#define GTK_CANVAS_RULER_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GTK_CANVAS_TYPE_CANVAS_RULER, GtkCanvasRulerClass))
-#define GTK_CANVAS_IS_CANVAS_RULER(obj) (GTK_CHECK_TYPE ((obj), GTK_CANVAS_TYPE_CANVAS_RULER))
-#define GTK_CANVAS_IS_CANVAS_RULER_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GTK_CANVAS_TYPE_CANVAS_RULER))
+#define GNOME_CANVAS_TYPE_CANVAS_RULER (gnome_canvas_ruler_get_type ())
+#define GNOME_CANVAS_RULER(obj) (GTK_CHECK_CAST ((obj), GNOME_CANVAS_TYPE_CANVAS_RULER, GnomeCanvasRuler))
+#define GNOME_CANVAS_RULER_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GNOME_CANVAS_TYPE_CANVAS_RULER, GnomeCanvasRulerClass))
+#define GNOME_CANVAS_IS_CANVAS_RULER(obj) (GTK_CHECK_TYPE ((obj), GNOME_CANVAS_TYPE_CANVAS_RULER))
+#define GNOME_CANVAS_IS_CANVAS_RULER_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GNOME_CANVAS_TYPE_CANVAS_RULER))