# Module GraphicsX11

    module GraphicsX11 = struct ... end

Additional graphics primitives for the X Windows system.

`type window_id = `string``

    val window_id : unit -> window_id

Return the unique identifier of the Caml graphics window. The returned string is an unsigned 32 bits integer in decimal form.

    val open_subwindow : x:int -> y:int -> width:int -> height:int -> window_id

Create a sub-window of the current Caml graphics window and return its identifier.

    val close_subwindow : window_id -> unit

Close the sub-window having the given identifier.