`([> `gtk | `mathview_gmetadom | `widget ] as 'b) Gtk.obj ->
object ('a)
val after : bool
val obj : 'b Gtk.obj
method after : 'a
method click :
callback:(Gdome.element option * int * int * int -> unit) -> GtkSignal.id
method destroy : callback:(unit -> unit) -> GtkSignal.id
method element_over :
callback:(Gdome.element option * int * int * int -> unit) -> GtkSignal.id
method select_abort : callback:(unit -> unit) -> GtkSignal.id
method select_begin :
callback:(Gdome.element option * int * int * int -> unit) -> GtkSignal.id
method select_end :
callback:(Gdome.element option * int * int * int -> unit) -> GtkSignal.id
method select_over :
callback:(Gdome.element option * int * int * int -> unit) -> GtkSignal.id
end`