title: How to get Agora io Screen sharing cancel event?
body: <p>I am using agora io for video calling and screen sharing. screen share is working fine. But problem is when I cancel the screen share then stream is not displaying. But join is still active. I need to catch the cancel event of screen sharing. I have read the document but there is no clue about cancel event. 
  Would you please help to get the cancel event?
  Advance thank you.</p>