[plt-scheme] multiple keyboard event

From: Berticolas Copimasso (bicuit2fois at yahoo.fr)
Date: Tue Apr 15 08:01:06 EDT 2003

is it possible by overriding on-char in a canvas to
have two different keyboard event at the same time,
and to treat them separatly.

if not is there any simple way to obtain same result
(with yield, or thread maybe) ? 


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