-#define GTK_BUTTON_BOX(obj) (GTK_CHECK_CAST ((obj), GTK_TYPE_BUTTON_BOX, GtkButtonBox))
-#define GTK_BUTTON_BOX_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GTK_TYPE_BUTTON_BOX, GtkButtonBoxClass))
-#define GTK_IS_BUTTON_BOX(obj) (GTK_CHECK_TYPE ((obj), GTK_TYPE_BUTTON_BOX))
-#define GTK_IS_BUTTON_BOX_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GTK_TYPE_BUTTON_BOX))
-#define GTK_BUTTON_BOX_GET_CLASS(obj) (GTK_CHECK_GET_CLASS ((obj), GTK_TYPE_BUTTON_BOX, GtkButtonBoxClass))
-
-
-#define GTK_BUTTONBOX_DEFAULT -1
-
-typedef struct _GtkButtonBox GtkButtonBox;
-typedef struct _GtkButtonBoxClass GtkButtonBoxClass;
+#define GTK_BUTTON_BOX(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_BUTTON_BOX, GtkButtonBox))
+#define GTK_BUTTON_BOX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_BUTTON_BOX, GtkButtonBoxClass))
+#define GTK_IS_BUTTON_BOX(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_BUTTON_BOX))
+#define GTK_IS_BUTTON_BOX_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_BUTTON_BOX))
+#define GTK_BUTTON_BOX_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_BUTTON_BOX, GtkButtonBoxClass))
+
+
+typedef struct _GtkButtonBox GtkButtonBox;
+typedef struct _GtkButtonBoxPrivate GtkButtonBoxPrivate;
+typedef struct _GtkButtonBoxClass GtkButtonBoxClass;