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(C#) Asynchronous SSL Client Example

Demonstrates how to connect to an SSL server, send a simple message, receive a simple response, and disconnect. This example uses the asynchronous methods to connect, send, and receive.

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

bool success;
success = socket.UnlockComponent("Anything for 30-day trial");
if (success != true) {
    textBox1.Text += socket.LastErrorText + "\r\n";
    return;
}

bool ssl;
ssl = true;
int maxWaitMillisec;
maxWaitMillisec = 20000;

//  The SSL server hostname may be an IP address, a domain name,
//  or "localhost".  You'll need to change this:
string sslServerHost;
sslServerHost = "123.123.88.88";
int sslServerPort;
sslServerPort = 8123;

//  Connect to the SSL server asynchronously in a background thread.
success = socket.AsyncConnectStart(sslServerHost,sslServerPort,ssl,maxWaitMillisec);
if (success != true) {
    textBox1.Text += socket.LastErrorText + "\r\n";
    return;
}

//  Wait for the socket to become connected...
while ((socket.AsyncConnectFinished != true)) {
    //  Sleep 1 second.
    socket.SleepMs(1000);
}

//  Did the connect fail?
if (socket.AsyncConnectSuccess != true) {
    textBox1.Text += socket.AsyncConnectLog + "\r\n";
    return;
}

//  Set maximum timeouts for reading an writing (in millisec)
socket.MaxReadIdleMs = 20000;
socket.MaxSendIdleMs = 20000;

//  Send a "Hello Server! -EOM-" message:
success = socket.AsyncSendString("Hello Server! -EOM-");
if (success != true) {
    textBox1.Text += socket.LastErrorText + "\r\n";
    return;
}

//  Wait for the send to finish
while ((socket.AsyncSendFinished != true)) {
    //  Sleep 1 second.
    socket.SleepMs(1000);
}

//  Did the send fail?
if (socket.AsyncSendSuccess != true) {
    textBox1.Text += socket.AsyncSendLog + "\r\n";
    return;
}

//  The server (in this example) is going to send a "Hello Client! -EOM-"
//  message.  Begin reading asynchronously in a background thread:
success = socket.AsyncReceiveUntilMatch("-EOM-");
if (success != true) {
    textBox1.Text += socket.LastErrorText + "\r\n";
    return;
}

//  Wait for the background read to finish
while ((socket.AsyncReceiveFinished != true)) {
    //  Sleep 1 second.
    socket.SleepMs(1000);
}

//  Did the receive fail?
if (socket.AsyncReceiveSuccess != true) {
    textBox1.Text += socket.AsyncReceiveLog + "\r\n";
    return;
}

//  Display the received message:
MessageBox.Show(socket.AsyncReceivedString);

//  Close the connection with the server
//  Wait a max of 20 seconds (20000 millsec)
socket.Close(20000);
 

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