I want to screenshare to 2 users.Like One user can share a screen and another user can see the same.In AppExchange having some apps but all those are Managed, So those we can't see any code.How can i start development for the functionality in salesforce.I don't know actually from where to start development?
Building your own screen sharing app seems like a pretty large leap. There's a reason companies charge moeny for their apps: it isn't easy. If you really want to tackle it, take a look at WebRTC (http://www.webrtc.org/).
