Module Region

module Region: sig .. end

check width height x y checks whether the point (x,y) is in the region of (0, 0) - (width - 1, height - 1). If not, it raises Images.Out_of_image.

val check : int -> int -> int -> int -> unit

check width height x y checks whether the point (x,y) is in the region of (0, 0) - (width - 1, height - 1). If not, it raises Images.Out_of_image.

val error : (unit -> unit) Pervasives.ref