Arguments: virtual-key-code
Returns two values indicating whether a particular key on the keyboard is currently depressed. The argument should be either the char-int of some graphic character or the value of one of the symbols beginning with vk-. This check is done asynchronously.
The first value indicates whether the key is down now (true if it is,
nil if it is not). The second returned value
indicates whether the key has been pressed since the last time this
function was called.
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.