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Returns the identifier of the current session.
property SessionKey: TRVSessionKey;
Value of this property is changed (incremented by 1) every time when Active becomes True. When Active=False, this property returns 0.
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).