# Class virtual OgtkButtonProps.font_button_notify

    class virtual font_button_notify : [> `fontbutton ] Gobject.obj -> object .. end

    val obj : ([> `fontbutton ] as 'a) Gobject.obj

    method private notify : 'b. ('a, 'b) Gobject.property -> callback:('b -> unit) -> GtkSignal.id

    method font_name : callback:(string -> unit) -> GtkSignal.id

    method show_size : callback:(bool -> unit) -> GtkSignal.id

    method show_style : callback:(bool -> unit) -> GtkSignal.id

    method title : callback:(string -> unit) -> GtkSignal.id

    method use_font : callback:(bool -> unit) -> GtkSignal.id

    method use_size : callback:(bool -> unit) -> GtkSignal.id