title: Function called by window maximise
body: <p>I was wondering if there is a way of binding a function to a Tkinter window's maximise button. At first I tried the English way of spelling it <code>root.protocol('WM_MAXIMISE_WINDOW', callback)</code> (with callback being a simple function). Then I tried spelling it the American way: <code>root.protocol('WM_MAXIMIZE_WINDOW', callback)</code>, all with no success. What is the correct way of doing this, if any? Thank you in advance for any help.</p>