Clipping

The Clipping structure contains functions and structures to create and manipulate clipping regions.

structure Clipping :
  sig
    type HDC and HRGN
    type RECT = { top: int, left: int, bottom: int, right: int }
    type RegionOperation = Region.RegionOperation
    type ResultRegion = Region.ResultRegion

    val ExcludeClipRect : HDC * RECT -> ResultRegion
    val ExtSelectClipRgn : HDC * HRGN * RegionOperation -> ResultRegion
    val GetClipBox : HDC -> ResultRegion * RECT
    val GetClipRgn : HDC * HRGN -> unit
    val GetMetaRgn : HDC * HRGN -> unit
    val IntersectClipRect : HDC * RECT -> ResultRegion
    val OffsetClipRgn : HDC * int * int -> ResultRegion
    val PtVisible : HDC * int * int * bool -> bool
    val RectVisible : HDC * RECT -> bool
    val SelectClipPath : HDC * RegionOperation -> unit
    val SelectClipRgn : HDC * HRGN -> unit
    val SetMetaRgn : HDC -> unit
  end