private void Connectbutton_Click(object sender, EventArgs e)
{
client = new TcpClient();
IPEndPoint IpEnd = new IPEndPoint(IPAddress.Parse(ClientIPtextbox.Text), int.Parse(ClientPorttextbox.Text));
noOfConnections++;
txtConnections.Text = noOfConnections.ToString();
try
{
client.Connect(IpEnd);
if (client.Connected)
{
ChatScreentextbox.AppendText("Connected to server" + "\n");
STW = new StreamWriter(client.GetStream());
STR = new StreamReader(client.GetStream());
STW.AutoFlush = true;
backgroundWorker1.RunWorkerAsync();
backgroundWorker2.WorkerSupportsCancellation = true;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message.ToString());
}
}
// allows the user to connect to a hosting/server IP address in order to enter the chatri
private void Connectbutton_Click(object sender, EventArgs e)
{
client = new TcpClient(); // the variable client is overwritten with a new instance of TcpClient
// Represents a network endpoint as an IP address and a port number.
IPEndPoint IpEnd = new IPEndPoint(IPAddress.Parse(ClientIPtextbox.Text), int.Parse(ClientPorttextbox.Text));
try
{
client.Connect(IpEnd);
if (client.Connected)
{
// Lets the user know that they have connected to the local server
ChatScreentextbox.AppendText("Connected to server" + "\n");
noOfConnections++;
txtConnections.Text = noOfConnections.ToString();
myStreamWriter = new StreamWriter(client.GetStream());
myStreamReader = new StreamReader(client.GetStream());
myStreamWriter.AutoFlush = true; // flushes the buffer
backgroundWorker1.RunWorkerAsync(); // starts backgroundWorker1
backgroundWorker2.WorkerSupportsCancellation = true; // allows backgroundworker2 to be cancelled asynchronously
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message.ToString());
}
}
private void backgroundWorker2_DoWork(object sender, DoWorkEventArgs e)
{
if (client.Connected)
{
STW.WriteLine(TextToSend);
this.ChatScreentextbox.Invoke(new MethodInvoker(delegate()
{
ChatScreentextbox.AppendText("Player:" + TextToSend + "\n");
}));
}
else
{
MessageBox.Show("Sending failed");
}
backgroundWorker2.CancelAsync();
}
// Starts a server/hosting service for other clients to connect
private void Startbutton_Click(object sender, EventArgs e)
{
TcpListener listener = new TcpListener(IPAddress.Any, int.Parse(ServerPorttextbox.Text)); // uses the IP address in the textbox to be listened to
listener.Start(); // starts listening if its an IP address
client = listener.AcceptTcpClient(); // accepts clients listening on IP address
myStreamReader = new StreamReader(client.GetStream());
myStreamWriter = new StreamWriter(client.GetStream());
myStreamWriter.AutoFlush = true;
backgroundWorker1.RunWorkerAsync();
backgroundWorker2.WorkerSupportsCancellation = true;
// increases number of connections and informs server side that a user is in the chatroom
noOfConnections++;
txtConnections.Text = noOfConnections.ToString();
ChatScreentextbox.AppendText("A user has connected!");
}
private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
while (client.Connected)
{
try
{
recieve = STR.ReadLine();
this.ChatScreentextbox.Invoke(new MethodInvoker(delegate()
{
ChatScreentextbox.AppendText("Opponent:" + recieve + "\n");
}));
recieve = "";
}
catch (Exception ex)
{
MessageBox.Show(ex.Message.ToString());
}
}
}
private void backgroundWorker2_DoWork(object sender, DoWorkEventArgs e)
{
// if you've connected to the server
if (client.Connected)
{
//enables easy and efficient text output
myStreamWriter.WriteLine(messageSend);
this.ChatScreentextbox.Invoke(new MethodInvoker(delegate()
{
// send message stating who sent it and their message
ChatScreentextbox.AppendText("player:" + messageSend + "\n");
}));
}
else
{
// error handling message
MessageBox.Show("SENDING MESSAGE FAILED...");
}
backgroundWorker2.CancelAsync();
}
private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
//
while (client.Connected)
{
try
{
// Stream
messageRecieve = myStreamReader.ReadLine();
this.ChatScreentextbox.Invoke(new MethodInvoker(delegate()
{
// send message stating who sent it and their message -
ChatScreentextbox.AppendText("opponent:" + messageRecieve + "\n");
}));
messageRecieve = "";
}
catch (Exception ex)
{
MessageBox.Show(ex.Message.ToString());
}
}
}
