I am trying to build a small video chat window which can co-exist on the screen with other application such as internet browser like which is shown in this picture
My main problem is not with WEBRTC but with how to make two applications co-exist on the screen as skype does.
I have some experience with unity , rails and node.js . Is there any chance I can achieve my goal with the above framework?
Or do I have to learn something new like QT?
Please give me some advice, thanks a lot.
p.s. Do I have to build a desktop app for this feature or a website would be able to do the trick?