Enble share audio when screen sharing.
Determine whether annotation feature is supported.
Determine whether other user is sharing.
Determine whether the current user is sharing the screen.
Determine whether sharing the view or screen is locked.
Determine whether the current user is sharing.
Determine whether viewer annotation is disabled.
Lock sharing the view or screen. Only the host can call this method.
Pause screen share.
Resume screen share.
Start sharing the screen.
Stop view or screen share.
Disable viewer annotation.