From: teeshift <teeshift@...>
Date: 2007-02-06T22:00:05+09:00
Subject: Re: sample a pixel from tk canvas

sorry, did not do the homework. someone has asked it and the answer
could be found

http://groups.google.com/group/comp.lang.ruby/browse_thread/thread/f0cd7b379e8b195f/e9fded6c453a28bb?lnk=gst&q=get+pixel+canvas&rnum=1#e9fded6c453a28bb