title: How to disable a Perl/Tk window close ('X') button on Windows
body: <p>Is there a way to make a Perl/Tk window's close ('X') button disabled?
  I know how to ignore clicking it using the technique described <a href="http://www.mail-archive.com/perl-win32-users@lyris.activestate.com/msg01402.html" rel="nofollow noreferrer">here</a>, but I would much rather have it disabled.</p>
  
  <p>I'm using Perl/Tk on Windows.</p>
  
  <p>Thanks,<br>
  splintor</p>