From: "R. Mark Volkmann" <mark@...>
Date: 2004-12-03T21:05:09+09:00
Subject: Tk mouse events and keys

I'm using the following code to detect a left mouse click.

    canvas.bind('1', proc {|event| doPress(event)})

Inside my doPress method, is there a way I can ask the event object whether
the ctrl key was down when the mouse button was pressed?

Is proc what I should be using in my bind call?