Returns the identifier of the current session.
property SessionKey: TRVSessionKey;
Value of this property is passed as a parameter to events of TRVCamSender. If you perform time consuming operations inside an event, it makes sense to compare values of this property and SessionKey parameter, to make sure that a connection was not closed or reopened.
Value of this property is not transferred to connected TRVCamReceiver or TRVMediaServer, so it is a local property. It is not necessary equal to the SessionKey of the connected TRVCamReceiver (these properties are independent from each other).