title: What does overrideredirect() do?
body: <p>I have come to understand <code>overrideredirect</code> helps removing the default window decorations like the toolbar.What are its other uses? I am not very sure and couldn't find much documentation.<br/><br/>
  I am working on a mac. Using tkinter I want to obtain window which remains maxsize and cannot be resized,which i have achieved using <strong>geometry</strong> and <strong>resizable</strong>. What I need now is the guarantee that no random keystrokes by my user can close the window. Will <code>overrideredirect</code> help me in that? Is there any alternative?</p>