-#define GTK_INVISIBLE(obj) (GTK_CHECK_CAST ((obj), GTK_TYPE_INVISIBLE, GtkInvisible))
-#define GTK_INVISIBLE_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GTK_TYPE_INVISIBLE, GtkInvisibleClass))
-#define GTK_IS_INVISIBLE(obj) (GTK_CHECK_TYPE ((obj), GTK_TYPE_INVISIBLE))
-#define GTK_IS_INVISIBLE_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GTK_TYPE_INVISIBLE))
-#define GTK_INVISIBLE_GET_CLASS(obj) (GTK_CHECK_GET_CLASS ((obj), GTK_TYPE_INVISIBLE, GtkInvisibleClass))
+#define GTK_INVISIBLE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_INVISIBLE, GtkInvisible))
+#define GTK_INVISIBLE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_INVISIBLE, GtkInvisibleClass))
+#define GTK_IS_INVISIBLE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_INVISIBLE))
+#define GTK_IS_INVISIBLE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_INVISIBLE))
+#define GTK_INVISIBLE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_INVISIBLE, GtkInvisibleClass))