[Tutor] Windows 98 Tkinter binding event <Return> fails

[Michael P. Reilly]

> 
> I took bind1.py from Fredrik Lundhs Introduction to Tkinter and
> altered it slightly to wait for the Enter key instead of a mouse button
> :
> ---------------------------------------------
> from Tkinter import *
> 
> root = Tk ()
> 
> def callback ( event ) :
>     print 'called the callback!'
> 
> frame = Frame ( root, width=100, height=100 )
> frame.bind ( '<Return>', callback )
> frame.pack ()
> 
> root.mainloop ()
> ---------------------------------------------
> It does not work. Does that mean that it is impossible to use unbuffered
> keyboard input with Tkinter under Windows ?

Try putting the focus into the frame:
  frame.bind ( '<Return>', callback )
  frame.pack ()
  frame.focus ()

The system needs to know which window (or in this case, which sub-window)
to direct the keystrokes to.

  -Arcege

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| Michael P. Reilly, Release Manager  | Email: arcege@shore.net        |
| Salem, Mass. USA  01970             |                                |
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