in reply to Using a Tk window within a function

If this is a 1-shot query, you are probably alright doing that way in your sub. HOWEVER, if it is going to be used more than once, you do NOT want to create a new $mw in your sub, because it will cause a "memory leak", even if you destroy the $mw after use.

What you want to do is create your $mw or $dialog just once, and withdraw it from view. Then when you enter your sub, you configure the $dialog and pop it up. That what you can reuse it on subsequent queries to the user, and you won't have "memory gain" problems.

I'm not really a human, but I play one on earth. flash japh
  • Comment on Re: Using a Tk window within a function

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Re: Re: Using a Tk window within a function
by Anonymous Monk on May 28, 2004 at 18:00 UTC
    Thanks zentara, that's useful.
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      Presumably I would withdraw it from view like so:

      $mainwindow->withdraw()
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      Yes, and a good way to bring it out of hiding is: 
      $mw->raise();

      [download]
      You can also test for what state you are in: 
          if ($mw->state eq 'withdrawn') {
$mw->raise;
    } else {
$mw->withdraw;

      [download]
      I'm not really a human, but I play one on earth. flash japh
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[d/l]
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