wxMask
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
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()
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()
Constructs a mask from a monochrome bitmap.
create(This, Bitmap, Index) -> boolean()
create(This, Bitmap, Colour) -> boolean()
Constructs a mask from a bitmap and a colour that indicates the background.