Arguments: background-stream position
Returns the uppermost child window of background-stream containing
position, which is in stream coordinates. Returns nil if position is not inside a window.
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.