-#define GTK_CANVAS_TYPE_CANVAS_CURVE (gtk_canvas_curve_get_type ())
-#define GTK_CANVAS_CURVE(obj) (GTK_CHECK_CAST ((obj), GTK_CANVAS_TYPE_CANVAS_CURVE, GtkCanvasCurve))
-#define GTK_CANVAS_CURVE_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GTK_CANVAS_TYPE_CANVAS_CURVE, GtkCanvasCurveClass))
-#define GTK_CANVAS_IS_CANVAS_CURVE(obj) (GTK_CHECK_TYPE ((obj), GTK_CANVAS_TYPE_CANVAS_CURVE))
-#define GTK_CANVAS_IS_CANVAS_CURVE_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GTK_CANVAS_TYPE_CANVAS_CURVE))
+#define GNOME_CANVAS_TYPE_CANVAS_CURVE (gnome_canvas_curve_get_type ())
+#define GNOME_CANVAS_CURVE(obj) (GTK_CHECK_CAST ((obj), GNOME_CANVAS_TYPE_CANVAS_CURVE, GnomeCanvasCurve))
+#define GNOME_CANVAS_CURVE_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GNOME_CANVAS_TYPE_CANVAS_CURVE, GnomeCanvasCurveClass))
+#define GNOME_CANVAS_IS_CANVAS_CURVE(obj) (GTK_CHECK_TYPE ((obj), GNOME_CANVAS_TYPE_CANVAS_CURVE))
+#define GNOME_CANVAS_IS_CANVAS_CURVE_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GNOME_CANVAS_TYPE_CANVAS_CURVE))