[plt-scheme] Extensibility of MrEd

From: Ben Goetter (goetter at mazama.net)
Date: Sun Aug 3 16:42:54 EDT 2008

P.S.  The get-handle method of window<%> gets me partway there.  (I 
overlooked this in the docs - scheme/class being new to me.)  What 
remains now is to extend the set of messages recognized by a frame window.



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