title: How to disable frame and enable close/min/max button
body: <p>I want to disable frame but button which is in upper menu in each frame (X-close ...) I want still enable</p>
  
  <p>I try this:</p>
  
  <pre><code>frame.setEnable(true); 
  </code></pre>
  
  <p>this works good on linux. These button are still active but in windows no. Is there options how to active them ?</p>