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(** Represent the {!module:Sheet} *)
type screen
(** Initialise thee screen *)
val init: unit -> screen
val close: screen -> unit
(** {2 Screen updates} *)
val draw: Sheet.t -> screen -> screen
val draw_input: Sheet.t -> screen -> screen
val resize: Sheet.t -> screen -> screen
(** Display a message in the status bar. *)
val status: screen -> UTF8.t -> unit
(** {2 User inputs} *)
(** Wait for a keycode *)
val read_key : screen -> string
(** The keycode is always NULL terminated *)
val search: screen -> UTF8.t
val get_cell: screen -> int * int -> (int * int) option
val editor: ?position: int * int -> ?prefix:UTF8.t -> ?init:UTF8.t -> screen -> UTF8.t option
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