title: Eclipse RCP - Programmatically setting a view to not be closeable
body: <p>I'm trying to create an RCP view that is not closeable.  I need a way to set this property programmatically because I'm creating views with secondary IDs in in the code.  I can't do it through the extension editor dialogs because of this.</p>
  
  <p>Is there a way to remove the x from a view programmatically?</p>