(C# UWP/WinRT) Accept Connection on Socket

Demonstrates how to create a TCP/IP socket, listen on a port, accept an incoming connection, and send a "Hello World" message to the client.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Chilkat.Socket listenSocket = new Chilkat.Socket();

// Bind to a port and listen for incoming connections:
// This example will listen at port 5555 and allows for a backlog
// of 25 pending connection requests.
bool success = await listenSocket.BindAndListenAsync(5555,25);
if (success != true) {
    Debug.WriteLine(listenSocket.LastErrorText);
    return;
}

// Get the next incoming connection
// Wait a maximum of 20 seconds (20000 millisec)
Chilkat.Socket connectedSocket = null;
connectedSocket = await listenSocket.AcceptNextConnectionAsync(20000);
if (listenSocket.LastMethodSuccess == false) {
    Debug.WriteLine(listenSocket.LastErrorText);
    return;
}

// Set maximum timeouts for reading an writing (in millisec)
connectedSocket.MaxReadIdleMs = 10000;
connectedSocket.MaxSendIdleMs = 10000;

// Send a "Hello World!" message to the client:
success = await connectedSocket.SendStringAsync("Hello World!");
if (success != true) {
    Debug.WriteLine(connectedSocket.LastErrorText);

    return;
}

// Close the connection with the client.
// Wait a max of 20 seconds (20000 millsec)
success = await connectedSocket.CloseAsync(20000);

Debug.WriteLine("success!");