System.Runtime.Serialization.DataContractSerializer.WriteObject C# (CSharp) Method

        public override void WriteObject(System.Xml.XmlWriter writer, object graph) { }
        public override void WriteObjectContent(System.Xml.XmlDictionaryWriter writer, object graph) { }

        public void PingAdversary(ProximityDevice device, NotifyNfcReady notify)
        {
            if (subscribeId != -1)
            {
                proximityDevice.StopSubscribingForMessage(subscribeId);
                subscribeId = -1;
            }

            if (publishId != -1)
            {
                proximityDevice.StopPublishingMessage(publishId);
                publishId = -1;
            }

            if (state == NfcManager.ProtoState.Busy)
            {
                return;
            }

            state = NfcManager.ProtoState.NotReady;
            notifyReady = notify;
            initialMessage.devicetime = random.NextDouble();
            MemoryStream stream = new MemoryStream();
            DataContractSerializer serializer = new DataContractSerializer(initialMessage.GetType());
            serializer.WriteObject(stream, initialMessage);
            stream.Position = 0;
            var dataWriter = new DataWriter();
            dataWriter.WriteBytes(stream.GetBuffer());
            proximityDevice = device;
            publishId = proximityDevice.PublishBinaryMessage("Windows.CarTrumps", dataWriter.DetachBuffer());
            subscribeId = proximityDevice.SubscribeForMessage("Windows.CarTrumps", OnMessageReceived);
        }