title: Chromecast - Sending text message to YouTube receiver
body: <p>I implemented a chromecast application, it will join to the YouTube session which is already established by the user from YouTube cast feature. Used "Cast.CastApi.joinApplication(mApiClient).setResultCallback(connectionResultCallback)" to do this. </p>
  
  <p>I think that when we cast movie from YouTube app, it will launch his own receiver app in chromecast for content play. </p>
  
  <p>Now I'm trying to send some text messages from my sender app to receiver app (which is YouTube receiver in our case). </p>
  
  <p>According to the google-cast-sdk, I implemented "MessageReceivedCallback" and getting success acknowledgement when I send text messages but the message is not getting displayed in receiver. </p>
  
  <p>Could you please give me a clue to send the text messages to YouTube receiver app? </p>
  
  <p>Thanks in advance.</p>