method activate : callback:(unit -> unit) -> GtkSignal.idmethod notify_hide_if_empty : callback:(bool -> unit) -> GtkSignal.idmethod notify_icon_name : callback:(string -> unit) -> GtkSignal.idmethod notify_is_important : callback:(bool -> unit) -> GtkSignal.idmethod notify_label : callback:(string -> unit) -> GtkSignal.idmethod notify_name : callback:(string -> unit) -> GtkSignal.idmethod notify_sensitive : callback:(bool -> unit) -> GtkSignal.idmethod notify_short_label : callback:(string -> unit) -> GtkSignal.idmethod notify_stock_id : callback:(GtkStock.id -> unit) -> GtkSignal.idmethod notify_tooltip : callback:(string -> unit) -> GtkSignal.idmethod notify_visible : callback:(bool -> unit) -> GtkSignal.idmethod notify_visible_horizontal : callback:(bool -> unit) -> GtkSignal.idmethod notify_visible_vertical : callback:(bool -> unit) -> GtkSignal.id