[Tutor] Tkinter: checking a Text widget for contents/changes

[Marv Boyes]

Hello, everyone. I'm hoping I can get an answer to this without having 
to burden all of you with a lengthy code-paste. :)

I'm working on a simple text-editing application, and would like to 
include a function to ask the user to save changes before quitting. Can 
anyone describe a method for checking to see if anything has been 
entered into a Text widget's buffer (or, ideally, to check for changes 
since the last save)? I'm pretty sure I already have all the other 
pieces I need to make it work.

Any guidance would be greatly appreciated; thanks very much in advance.


Marv

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