NAME

       wxMask - Functions for wxMask class

DESCRIPTION

       This  class  encapsulates a monochrome mask bitmap, where the masked area is black and the
       unmasked area is white.

       When associated with a bitmap and drawn in a device context,  the  unmasked  area  of  the
       bitmap will be drawn, and the masked area will not be drawn.

       Note:  A  mask can be associated also with a bitmap with an alpha channel but drawing such
       bitmaps under wxMSW may be slow so using them should be avoided if drawing performance  is
       an important factor.

       See: wxBitmap, wxDC:blit/6, wxMemoryDC

       wxWidgets docs: wxMask

DATA TYPES

       wxMask() = wx:wx_object()

EXPORTS

       new() -> wxMask()

              Default constructor.

       new(Bitmap) -> wxMask()

              Types:

                 Bitmap = wxBitmap:wxBitmap()

              Constructs a mask from a monochrome bitmap.

       new(Bitmap, Index) -> wxMask()

       new(Bitmap, Colour) -> wxMask()

              Types:

                 Bitmap = wxBitmap:wxBitmap()
                 Colour = wx:wx_colour()

              Constructs a mask from a bitmap and a colour that indicates the background.

       destroy(This :: wxMask()) -> ok

              Destroys the wxMask object and the underlying bitmap data.

       create(This, Bitmap) -> boolean()

              Types:

                 This = wxMask()
                 Bitmap = wxBitmap:wxBitmap()

              Constructs a mask from a monochrome bitmap.

       create(This, Bitmap, Index) -> boolean()

       create(This, Bitmap, Colour) -> boolean()

              Types:

                 This = wxMask()
                 Bitmap = wxBitmap:wxBitmap()
                 Colour = wx:wx_colour()

              Constructs a mask from a bitmap and a colour that indicates the background.