このコードを試してください
public void Listen()
{
string portStr = "5656";
int port = System.Convert.ToInt32(portStr);
// Create the listening socket...
m_mainSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream,ProtocolType.Tcp);
IPEndPoint ipLocal = new IPEndPoint(IPAddress.Any, port);
// Bind to local IP Address...
m_mainSocket.Bind(ipLocal);
// Start listening...
m_mainSocket.Listen(4);
btn_start.Enabled = false;
lbl_connect.Visible = true;
// Create the call back for any client connections...
m_mainSocket.BeginAccept(new AsyncCallback(OnClientConnect), null);
}
public void OnClientConnect(IAsyncResult asyn)
{
m_workerSocket[m_clientCount] = m_mainSocket.EndAccept(asyn);
// Let the worker Socket do the further processing for the
// just connected client
WaitForData(m_workerSocket[m_clientCount]);
// Now increment the client count
++m_clientCount;
// Display this client connection as a status message on the GUI
// Since the main Socket is now free, it can go back and wait for
// other clients who are attempting to connect
m_mainSocket.BeginAccept(new AsyncCallback(OnClientConnect), null);
//** クライアント データを待機中
public void WaitForData(System.Net.Sockets.Socket soc)
{
try
{
if (pfnWorkerCallBack == null)
{
// Specify the call back function which is to be
// invoked when there is any write activity by the
// connected client
pfnWorkerCallBack = new AsyncCallback(OnDataReceived);
}
SocketPacket theSocPkt = new SocketPacket();
theSocPkt.m_currentSocket = soc;
// Start receiving any data written by the connected client
// asynchronously
soc.BeginReceive(theSocPkt.dataBuffer, 0, theSocPkt.dataBuffer.Length,
SocketFlags.None,
pfnWorkerCallBack,
theSocPkt);
}
catch (SocketException se)
{
MessageBox.Show(se.Message);
}
}