doc">

<p>
Check if a Command is registered for a given <a class="el" href="interface_notification.html">Notification</a><p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>notificationName</em>&nbsp;</td><td></td></tr>
  </table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>whether a Command is currently registered for the given <code>notificationName</code>. </dd></dl>

<p>Reimplemented from