A class of object similar to windows in that you can draw onto it but
it is never visible on the screen. Its contents, however, can be
copied onto a visible window use copy-stream-area. A bitmap-window (or
bitmap-pane)
has the functionality of a bitmap-stream hardwired into it,
implementing the backing-store for automatically refreshing and
redisplaying the window. Bitmap-stream is provided in case you want to
manage the drawings stored in memory independently. For an example
using bitmap-streams, choose the Help menu | Examples and look for
Bitmap-streams: custom backing store. Create bitmap-streams with
open-stream.
Common Graphics and IDE documentation is described in About Common Graphics and IDE documentation in cgide.htm.
The documentation is described in introduction.htm and the index is in index.htm.
Copyright (c) 1998-2000, Franz Inc. Berkeley, CA., USA. All rights reserved.
Created 2000.10.5.