Re: Basic Socket

"Igor Tandetnik" <>
Fri, 5 Oct 2007 11:59:21 -0400
Lamefif <> wrote:

well no, i amended the code to what you suggested, ie WSAAsyncSelect()
before listen():
        WSAAsyncSelect (s, hwnd, MY_MESSAGE_NOTIFICATION, (FD_ACCEPT


int tempi = listen(s, SOMAXCONN);
   //Don't forget to clean up with CloseConnection()!

MessageBox(NULL,"Done Listening ", "Got Request..", MB_OK);

listen returns 0 i.e no errors, that means a connection has happened

No. Since you now call WSAAsyncSelect first, the socket is now in
non-blocking mode, so listen() returns immediately (which was the whole
point of the exercise). When the connection does arrive, you would get

However, you still close the socket right after listen() returns, so of
course no connection arrives (you are no longer listening for them) and
thus no notification.
With best wishes,
    Igor Tandetnik

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