[plt-scheme] clicking in an editor window

From: Matthias Felleisen (matthias at ccs.neu.edu)
Date: Sat Oct 8 12:31:29 EDT 2005

If this is for complete novices (101), you may wish to dump the text on 
the screen via world.ss. The on-key-event handler will then allow going 
back and forth in the slideshow. -- Matthias

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