[plt-scheme] How to detect mouse movements?

From: Jayto (igotjats at gmail.com)
Date: Thu Dec 3 15:59:49 EST 2009

I am working on my final project for my basic programing class. I want
to know how to use the on-mouse-event feature. I tried loading up the
teachpack world and I tried adding the on-mouse-move into my code. I
basically want to detect the location of the mouse when it is moved on
top of a canvas from the teach pack draw.  Can you give me an example
of how to use the mouse event commands? Thanks.

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