Managed C++/CLI

// ThreadedServer.cpp : main project file.

#include "stdafx.h"

using namespace System;
using namespace System::Net;
using namespace System::Net::Sockets;
using namespace System::IO;
using namespace System::Threading;
using namespace System::Collections;
using namespace System::Text;

ref class ClientHandler
{
public:
	TcpClient^ clientSocket;

	void RunClient()
	{
		// Create the stream classes
		StreamReader^ readerStream = gcnew StreamReader(clientSocket->GetStream());
		NetworkStream^ writerStream = clientSocket->GetStream();

		String^ returnData = readerStream->ReadLine();
		String^ userName = returnData;

		Console::WriteLine("Welcome " + userName + " to the Server");

		while (true)
		{
			returnData = readerStream->ReadLine();

			if (returnData->IndexOf("QUIT") > -1)
			{
				Console::WriteLine("Bye Bye " + userName);
				break;
			}

			Console::WriteLine(userName + ": " + returnData);
			returnData += "\r\n";

			array<byte>^ dataWrite = Encoding::ASCII->GetBytes(returnData);
			writerStream->Write(dataWrite, 0, dataWrite->Length);
		}

		clientSocket->Close();
	}
};

const int ECHO_PORT = 8080;

void main(void)
{
	try
	{
		// Bind the server to the local port
		TcpListener^ clientListener = gcnew TcpListener(ECHO_PORT);

		// Start to listen
		clientListener->Start();

		Console::WriteLine("Waiting for connections...");

		while (true)
		{
			// Accept the connection
			TcpClient^ client = clientListener->AcceptTcpClient();

			ClientHandler^ cHandler = gcnew ClientHandler();

			cHandler->clientSocket = client;

			// Create a new thread for the client
			// is anything wrong here?  
			Thread^ clientThread = gcnew Thread(gcnew ThreadStart(cHandler, &cHandler::RunClient));
			clientThread->Start();
		}

		clientListener->Stop();
	}
	catch (Exception^ e)
	{
		Console::WriteLine("Exception: " + e);
	}
}</byte>

1>.\ThreadedServer.cpp(57) : warning C4947: 'System::Net::Sockets::TcpListener::TcpListener' : marked as obsolete
1>        Message: 'This method has been deprecated. Please use TcpListener(IPAddress localaddr, int port) instead.
1>.\ThreadedServer.cpp(74) : error C2825: 'cHandler': must be a class or namespace when followed by '::'
1>.\ThreadedServer.cpp(74) : error C2039: 'RunClient' : is not a member of '`global namespace''
1>.\ThreadedServer.cpp(74) : error C2146: syntax error : missing ')' before identifier 'RunClient'
1>.\ThreadedServer.cpp(74) : error C3924: error in argument #2 of delegate 
constructor call 'System::Threading::ThreadStart':
1>        pointer to member function expected
1>.\ThreadedServer.cpp(74) : error C2146: syntax error : missing ')' before identifier 'RunClient'
1>.\ThreadedServer.cpp(74) : error C2146: syntax error : missing ';' before identifier 'RunClient'
1>.\ThreadedServer.cpp(74) : error C2059: syntax error : ')'
1>.\ThreadedServer.cpp(74) : error C2059: syntax error : ')'
1>.\ThreadedServer.cpp(74) : error C2065: 'RunClient' : undeclared identifier