UStencil(3U) InterViews Reference Manual UStencil(3U)
NAME
UStencil - structured graphic displaying a bitmap
SYNOPSIS
#include <Unidraw/Graphic/stencil.h>
DESCRIPTION
A UStencil is a Graphic that displays a bitmapped image. Two Bitmap objects, an image and a mask, define a stencil's appearance. The
stencil potentially paints foreground color where image has a true value and background color where image is false, but only pixels that
have a corresponding true value in mask are thus affected. The stencil's origin coincides with the origins of the image and mask bitmaps.
The mask's bounding box defines the stencil's extent.
PUBLIC OPERATIONS
UStencil(Bitmap* image, Bitmap* mask = nil, Graphic* = nil)
Construct a UStencil, supplying an image and an optional mask bitmap and an optional graphic from which to obtain an initial set of
graphics state. Specifying nil for mask is equivalent to supplying a mask of the same size and shape as image that contains all
true values.
void GetOriginal(Bitamp*&, Bitmap*&)
Return the bitmap parameters supplied in the constructor.
SEE ALSO
Bitmap(3I), Graphic(3U)
Unidraw 2 February 1991 UStencil(3U)
