* value *)
val connect_button: #GButton.button -> (unit -> unit) -> unit
+
+(** Connect a callback to the toggled signal of a button, ignoring its return
+ * value *)
+val connect_toggle_button: #GButton.toggle_button -> (unit -> unit) -> unit
+
(** Like connect_button above, but connects a callback to the activate signal of
* a menu item *)
val connect_menu_item: #GMenu.menu_item -> (unit -> unit) -> unit