Sending/receiving ProtoOA messages

I would like to get some help for  how to send/receive ProtoOA messages. I am silly I know. I have been studying

the OpenAPI sample, but I have to write a simple console application without threads and other extras. 

The application has to know the following (base) functions only:

- connect to OpenAPI (it works)

- Send any ProroOA message (for example: Authorization request or get the current price....)

- Receive and process the data.

- exit 

here is my code but it halted at the  Transmit function. I do not know why and how to handle it.

Someone could send me a working example to berich1198@gmail.com

Thank you very much!

Beri

                try
                {
                    TcpClient client = new TcpClient(apiHost, apiPort);
                    apiSocket = new SslStream(client.GetStream(), false,
                    new RemoteCertificateValidationCallback(ValidateServerCertificate), null);
                    apiSocket.AuthenticateAsClient(apiHost);
                    try
                    {
                        SendAuthorizationRequest(outgoingMsgFactory, writeQueueSync);
                        Transmit(apiSocket, writeQueueSync, lastSentMsgTimestamp);
                    }
                    catch (Exception e)
                    {
                        Console.WriteLine("Error: {0}", e);
                        return;
                    }
                    Thread.Sleep(100);
                    try
                    {
	    					Listen(apiSocket, readQueueSync);
	                }
                    catch (Exception e)
                    {
                        Console.WriteLine("Error: {0}", e);
                        return;
                    }
	            }
                catch (Exception ex)
                {
                Console.WriteLine("Establishing SSL connection error: {0} Program aborted.", ex);
                return;
                }
            apiSocket.Close();