method copy_clipboard : unit -> unitmethod cut_clipboard : unit -> unitmethod delete_selection : unit -> unitmethod delete_text : start:int -> stop:int -> unitmethod get_chars : start:int -> stop:int -> stringmethod insert_text : string -> pos:int -> intmethod paste_clipboard : unit -> unitmethod select_region : start:int -> stop:int -> unitmethod selection : (int * int) optionmethod set_position : int -> unitmethod set_editable : bool -> unit