Arguments: &optional symbol-or-string
Takes a symbol or a string as its only argument, and attempts to display online documentation for it. The Help | Help On Selected Symbol command calls this function with the currently selected symbol.
In release prior to 6.0, Common Graphics and IDE documentation was in a WinHelp file. Starting in 6.0, all documentation is in HTML files.
If the argument is a string, it should be the title of one of the essay files describing Allegro CL or Common Graphics. Currently this is used by the Help | Help On Dialog command to display the topic associated with each IDE dialog.
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.