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(.NET Core C#) Socket Send and Receive BinDataDemonstrates the Chilkat Socket ReceiveBdN and SendBd methods.
// This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. Chilkat.Socket sock = new Chilkat.Socket(); // -------------------------------------------------------------------- // This example uses the public TCP echo service at https://tcpbin.com/ // -------------------------------------------------------------------- bool useTls = false; int port = 4242; int maxWaitMs = 5000; bool success = sock.Connect("tcpbin.com",port,useTls,maxWaitMs); if (success == false) { Debug.WriteLine(sock.LastErrorText); return; } // Wait a max of 2 seconds for a response.. sock.MaxReadIdleMs = 2000; // Send 26 bytes contained in a Chilkat BinData Chilkat.BinData bdToSend = new Chilkat.BinData(); int i = 0; int byteVal = 65; while (i < 26) { bdToSend.AppendByte(byteVal); byteVal = byteVal + 1; i = i + 1; } // Send the contents of the BinData // Pass zero's in the 2nd and 3rd arguments to send the entire contents of the BinData. sock.SendBd(bdToSend,0,0); // The tcpbin.com echo server only echoes after receiving an LF (linefeed char) sock.SendByte(10); // The echo server will echo back whatever is sent to it. // We should be able to read the same bytes back.. Chilkat.BinData bdRecv = new Chilkat.BinData(); // Receive the 26 bytes previously sent, plus the LF char. success = sock.ReceiveBdN(27,bdRecv); if (success == false) { Debug.WriteLine(sock.LastErrorText); return; } // Show the contents of bdRecv in hex format Debug.WriteLine(bdRecv.GetEncoded("hex")); // Output: 4142434445464748494A4B4C4D4E4F505152535455565758595A0A |
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