Package: common-graphics

A class of window that can be drawn on and which has a backing store. It remembers its contents in an attached bitmap and automatically redisplays them from that memory bitmap when required (such as when the pane is hidden and then exposed). This is the default-pane-class of the bitmap-window. If you want the whole image in a bitmap-pane to change, consider making the change in the body of a with-delayed-redraw macro. That macro handles bitmap panes specially and can be used to have the redraw appear cleaner. See the with-delayed-redraw for an example.

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.