Screen share with online user

Hi SE_0208,

  Thanks for ur response.My webcam streaming code is ---

var RTMP:String = "rtmp://flashwebtown.com/live";

var camLive:Camera = Camera.get();

var micLive:Microphone = Microphone.get();

oVideo1.attachVideo(camLive);

oVideo1.attachAudio(micLive);

var nc:NetConnection = new NetConnection()

1. nc.connect(RTMP);

//now create NetStream object

var ns:NetStream = new NetStream(nc);

var streamfile:String=_root.filename;

Play.onRelease = function():Void{

                ns.attachVideo(camLive);

                ns.attachAudio(micLive);

                ns.publish(streamfile, "live");

                Stop._visible = true;

                Play._visible = false;

}

Stop.onRelease = function():Void{

                ns.close();

               Stop._visible = false;

                Play._visible = true;

}

This's working fine. But i want to replace code for screen sharing instead of WebCam.

Plz help me.