title: Hide a tab previously added to Qt TabWidget
body: <p>I've a dialog which contains a Qt TabWidget with a number of tabs added. </p>
  
  <p>I'd like to hide one of the tabs.  </p>
  
  <pre><code>_mytab-&gt;hide() 
  </code></pre>
  
  <p>doesn't work.  I don't want to just delete the tab and all its widgets from the .ui file because other code relies on the widgets within the tab.  However, it would be fine to generate the tab code but somehow not ::insertTab in the generated uic_mydialog.cpp.  Setting the hidden property in the ui file does not work either.</p>
  
  <p>I'm using Qt 3.3</p>