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(C#) TCP/IP Socket Connect to Remote Host:PortDemonstrates how to create a TCP/IP socket, connect to a remote host:port, and receive a "Hello World!" message.
// This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. Chilkat.Socket socket = new Chilkat.Socket(); // Connect to port 5555 of localhost. // The string "localhost" is for testing on a single computer. // It would typically be replaced with an IP hostname, such // as "www.chilkatsoft.com". bool ssl = false; int maxWaitMillisec = 20000; bool success = socket.Connect("localhost",5555,ssl,maxWaitMillisec); if (success != true) { Debug.WriteLine(socket.LastErrorText); return; } // Set maximum timeouts for reading an writing (in millisec) socket.MaxReadIdleMs = 10000; socket.MaxSendIdleMs = 10000; // Pretend, for the sake of the example, that the // ficticious server is going to send a "Hello World!" // after accepting the connection. // Note: Technically, the ReceiveString may not receive the // complete string, although it's highly probable given the short // length of the "Hello World!" message. // See this Chilkat blog post for more information: // http://www.cknotes.com/?p=302 string receivedMsg = socket.ReceiveString(); if (socket.LastMethodSuccess != true) { Debug.WriteLine(socket.LastErrorText); return; } // Close the connection with the server // Wait a max of 20 seconds (20000 millsec) success = socket.Close(20000); Debug.WriteLine(receivedMsg); |
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