-#define GTK_ALIGNMENT(obj) GTK_CHECK_CAST (obj, gtk_alignment_get_type (), GtkAlignment)
-#define GTK_ALIGNMENT_CLASS(klass) GTK_CHECK_CLASS_CAST (klass, gtk_alignment_get_type (), GtkAlignmentClass)
-#define GTK_IS_ALIGNMENT(obj) GTK_CHECK_TYPE (obj, gtk_alignment_get_type ())
+#define GTK_TYPE_ALIGNMENT (gtk_alignment_get_type ())
+#define GTK_ALIGNMENT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_ALIGNMENT, GtkAlignment))
+#define GTK_ALIGNMENT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_ALIGNMENT, GtkAlignmentClass))
+#define GTK_IS_ALIGNMENT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_ALIGNMENT))
+#define GTK_IS_ALIGNMENT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_ALIGNMENT))
+#define GTK_ALIGNMENT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_ALIGNMENT, GtkAlignmentClass))