Unicode C++

TCP Socket Send Byte and Receive Byte

Demonstrates the Chilkat Socket ReceiveByte and SendByte method. Unicode C++

#include <CkSocketW.h>

void ChilkatSample(void)
    {
    bool success = false;

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

    CkSocketW sock;

    //  --------------------------------------------------------------------
    //  This example uses the public TCP echo service at https://tcpbin.com/
    //  --------------------------------------------------------------------

    bool useTls = false;
    int port = 4242;
    int maxWaitMs = 5000;
    success = sock.Connect(L"tcpbin.com",port,useTls,maxWaitMs);
    if (success == false) {
        wprintf(L"%s\n",sock.lastErrorText());
        return;
    }

    //  Wait a max of 2 seconds for a response..
    sock.put_MaxReadIdleMs(2000);

    //  Send a byte.
    sock.SendByte(96);

    //  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 byte back..
    //  After successfully reading, the byte value is available in the ReceivedInt property.
    bool treatAsUnsignedInt = true;
    success = sock.ReceiveByte(treatAsUnsignedInt);
    if (success == false) {
        wprintf(L"%s\n",sock.lastErrorText());
        return;
    }

    //  Let's look at the value of the byte received.  It should be 96.
    wprintf(L"%d\n",sock.get_ReceivedInt());

    //  The echo server also echoed the LF back.
    success = sock.ReceiveByte(treatAsUnsignedInt);
    //  Assuming success..

    //  Should be decimal 10.
    wprintf(L"%d\n",sock.get_ReceivedInt());
    }