>  from Tkinter import *
> 
>  def roll(event):
>      print event.delta
> 
>  frame = Frame(width=200, height=200)
>  frame.pack()
>  frame.focus_set() # wheel events goes to focussed window
>  frame.bind("<MouseWheel>", roll)

Thanks for this code.  Alas, on my XP machine, the roll handler is called,
and after a few calls tcl83.dll crashes.  I don't think I've ever seen a
hard tcl crash like this before.

I didn't explicitly call focus_set(), and I suppose that shouldn't matter:
the roll handler is only called when the canvas has focus.  The Text widgets
work properly as they always have.

Edward


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