这是d5的帮助，看3，4，5，6，7
1,An OnListen event occurs just before the server socket is opened for
listening.
2,The server socket receives client requests in a listening queue.
The server socket accepts one of those requests, and receives a Windows socket
handle for the new socket connection.
3,The server socket generates an OnGetSocket event, passing in the Windows
socket handle. If a TServerClientWinSocket object for the server endpoint
of the new connection is not created in an OnGetSocket event handler, the
server socket creates one. The TServerWinSocket object continues to listen
for other clients.
4,An OnAccept event occurs, using the new TServerClientWinSocket object.
5,If ServerType is stThreadBlocking and no thread is available in the cache,
an OnGetThread event occurs. If the OnGetThread event handlerdo
es not create
a thread, the server socket creates a TServerClientThread.
6,If ServerType is stThreadBlocking, an OnThreadStart event occurs as the
thread begin
s execution.
7,The client completes the connection to the TServerClientWinSocket
object and an OnClientConnect event occurs.
