wiki-export/wiki-content/DevFaqMainwindowClosingAction.xml

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  <page>
    <title>DevFaqMainwindowClosingAction</title>
    <id>7386</id>
    <revision>
      <id>26170</id>
      <timestamp>2009-11-06T15:52:58Z</timestamp>
      <contributor>
        <username>Admin</username>
        <id>1</id>
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      <text xml:space="preserve">__NOTOC__
===How do I change the closing action of the MainWindow?===

When you click the close button in the top right corner the application closes. If you want to do something before the application closes (e.g. show a dialog with OK and Cancel options) or prevent it from closing, this is possible.

Make a class in your module that extends &lt;tt&gt;org.openide.modules.ModuleInstall&lt;/tt&gt;. There is a '''Module Installer''' template that will create this class for you.

Override the &lt;tt&gt;closing&lt;/tt&gt; method and insert your special logic.
If you return &lt;tt&gt;false&lt;/tt&gt; the application will not exit.</text>
    </revision>
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