Unicode C++

Send BinData Contents over a Socket

Demonstrates Socket.SendBd, which sends bytes from a BinData beginning at an offset. A numBytes of 0 sends from the offset through the end of the data.

Background. The BinData receive methods accumulate raw bytes in a BinData object. A single receive returns only what is currently available, whereas the counted receive waits for an exact number of bytes.

Chilkat Unicode C++ Downloads

Download Chilkat for Unicode C++

Unicode C++

#include <CkSocketW.h>
#include <CkBinDataW.h>

void ChilkatSample(void)
    {
    bool success = false;

    CkSocketW socket;

    //  Connect to the server using TLS.
    bool bTls = true;
    int maxWaitMs = 5000;
    success = socket.Connect(L"example.com",5000,bTls,maxWaitMs);
    if (success == false) {
        wprintf(L"%s\n",socket.lastErrorText());
        return;
    }

    //  Place some bytes into a BinData to be sent.
    CkBinDataW bd;
    bd.AppendString(L"message payload",L"utf-8");

    //  Send bytes from the BinData starting at the given offset.  A numBytes of 0 sends from the offset
    //  through the end of the data.
    success = socket.SendBd(bd,0,0);
    if (success == false) {
        wprintf(L"%s\n",socket.lastErrorText());
        return;
    }

    wprintf(L"Sent %d bytes.\n",bd.get_NumBytes());
    }