I've depeloped an application in C++ using CEGUI that works similar than steam or the league of legends launcher.
You have your account to enter, add your friends inside the application and then you can play a game with one friend by inviting him to the game.
The game has been developed on unity.
My question is, how can I launch my unity game giving it the right parameters from my C++ Code to make that it starts the game with you and your friend just like games like league of legends, or DOTA does?
Any tutorial, guide, or something that point me in the right direction, because I really don't know where should I start.
Thanks very much!