how do I get the get connected socket

how do I get the get connected socket

for example

            strcpy(resultBuf,inBuf);
            errcnt = 0;
            while( sendto(listen_socket, resultBuf, strlen(resultBuf) + 1, 0, (struct sockaddr *)&from, fromlen) == SOCKET_ERROR  )
                  {
                  if( errcnt++ > 4 )
                        {
                        DisplayMsg("send of resultBuf packet failed");
                        WSACleanup();
                        break;
                        }
                  }

in a next program I need to find the listen socket to get the message. that I am sending back the send is from a C code and I am trying to get that message send in VB6 code