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WinSock programming in MFC (TCP)

Posted on 1998-12-28
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Last Modified: 2013-11-20
How do i create a WinSocket, how do i use it?. I want to make a client program that sends a network message to a server program. Please help me!!
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Question by:byrdal
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perrizo earned 150 total points
ID: 1326845
If you know what port the other program listens on and you know what kind of data you need to send it all you have to do is use CAsyncSocket::Send(const void* lpBuf, int nBufLen, int nFlags=0)
to send the data.  Below is a code snipet of what it might look like...

void SomeFunction()
{
   CAsyncSocket* pClientSocket = new CAsyncSocket; // allocate a new socket
   CObject object;
   long timeout = 0;
   CString strReturn;

   pClientSocket->Create(); // create the socket
   pClientSocket->Connect("172.16.128.10", "700"); //ip address and port
   if(pClientSocket->Send(&object, sizeof(object)) != SOCKET_ERROR)  // send the data
   {
      while(pSocket->Receive(&strReturn, sizeof(strReturn), MSG_PEEK) == SOCKET_ERROR && timeout < 5000)  // peek at the socket data for the return message or until timeout
         timeout++

      pSocket->Receive(&strReturn, sizeof(strReturn)); // get the data that just arrived
   }
}

Something like this should work...
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