Communication of two programs using sockets

It's very easy to write, and I think it's very interesting.

Program

Main code

 Public classMessage {Form1 mainfrom=NULL;  PublicMessage () {} PublicMessage (Form1 form) {Mainfrom=form; }         Public BOOLStartreceive (intPort) {            Try{IPEndPoint IEP=NewIPEndPoint (Ipaddress.loopback, Port); Socket TCPServer=Newsockets (AddressFamily.InterNetwork, SocketType.Stream, protocoltype.tcp);                Tcpserver.bind (IEP); Tcpserver.listen ( -); Tcpserver.beginaccept (NewAsyncCallback (Accept), tcpserver); return true; }            Catch(Exception ex) {return false; } }        Private voidAccept (IAsyncResult ia) {socket Socket= ia. AsyncState asSocket; varClient =socket.            Endaccept (IA); byte[] buf =New byte[1024x768]; Socket. BeginAccept (NewAsyncCallback (Accept), socket); StateObject State=NewStateObject (); State.worksocket=client; Try{client. BeginReceive (State.buffer,0, Stateobject.buffersize, Socketflags.none,NewAsyncCallback (Receive), state); }            Catch(Exception ex) {//Console.WriteLine ("Error listening on request: \ r \ n" + ex.) ToString ());            }        }        Private voidReceive (IAsyncResult ia) {stateobject State= ia. AsyncState asStateObject; if(state = =NULL)            {                return; } Socket Client=State.worksocket; if(Client = =NULL)            {                return; }            Try            {                intCount =client.                EndReceive (IA); if(Count >0)                {                    Try{client. BeginReceive (State.buffer,0, Stateobject.buffersize, Socketflags.none,NewAsyncCallback (Receive), client); stringContext = Encoding.GetEncoding ("gb2312"). GetString (State.buffer,0, Count); //Show Receive MessageMainfrom.                    Loginformtextchange (context); }                    Catch(Exception ex) {//Console.WriteLine ("Error receiving data: \r\n{0}", ex. ToString ());                    }                }            }            Catch(Exception err) {}} Public voidSendMessage (intPortstringm) {System.Text.Encoding CharSet= System.Text.Encoding.GetEncoding ("gb2312"); Socket tcpClient=Newsockets (AddressFamily.InterNetwork, SocketType.Stream, protocoltype.tcp); Try{tcpclient.connect (ipaddress.loopback, Port); stringsendmsg =m; byte[] Buff =charset.getbytes (sendmsg); Tcpclient.send (buff, buff. Length,0); }            Catch(SocketException e) {}}}  Public classStateObject {//Client socket.         PublicSocket Worksocket =NULL; //Size of receive buffer.         Public Const intBufferSize =1024x768; //Receive buffer.         Public byte[] buffer =New byte[buffersize]; //Received data string.         PublicStringBuilder SB =NewStringBuilder (); }

SOURCE Http://yun.baidu.com/s/1i39XtjR

Communication of two programs using sockets