title: Close button only for some tabs in Qt
body: <p>I am using Qt for an assignment I have for college, and I want to use <code>QTabWidget</code> to display a chat window much like <a href="https://www.pidgin.im/" rel="noreferrer">Pidgin's</a>. I want to make the "group chat" tab always open and impossible to close and the rest of the "private channel" tabs closable.</p>
  
  <p><code>QTabWidget</code>'s <code>setTabsClosable(bool)</code> is not helping.</p>
  
  <p>Any ideas?</p>