PMask = ref TMask

TMask = object of TObject
  x*, y*: int
  w*, h*: int
  data*: seq[seq[bool]]

proc setMask(obj: PMask; surface: PSurface)

proc init(obj: PMask; filename: cstring; x: int = 0; y: int = 0)

proc init(obj: PMask; surface: PSurface; x: int = 0; y: int = 0)

proc newMask(filename: cstring; x: int = 0; y: int = 0): PMask

proc newMask(surface: PSurface; x: int = 0; y: int = 0): PMask

method getRect(obj: PMask): TRect