First at all thanks wysota for your answer

Well the problem right now is network-chat example are not fully documented and like I said I'm new using QtNetwork module and I'm new using networking operations.

I need to make some changes to this example:

all connections to the server must know and use the same port, because if there are more than one server game running, I' need to allow choose one of them.

connected people can choose who they want to talk, or send all people connected a comment

Only that I need is some help to understand how network-chat example's main classes works

Thanks in advanced

pd: sorry my English