title: How to block possibility to edit/drag impoly in matlab?
body: <p>I create a polygon on image_area in matlab. 
  I used impoly. 
  But after creation polygon. 
  I need to block possibility to move and drag impoly (ROI is already created). 
  I don't know  how I should do it ?</p>
  
  <p>I would appreciate for any help please.</p>