If the login code you provided is not the same with projector server's displayed
login code, the following message will appear:
If you see this message, click 'OK' to input correct login code.
If you entered correct login code, you'll be connected to projector server as
one of users, and the client software will be look like this:
Before any user start presentation, all connected user's name and their IP
address will be listed on projector server's display:
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