#include <MsgBoxConstants.au3>

Example()

Func Example()
    TCPStartup() ; Start the TCP service.

    ; Register OnAutoItExit to be called when the script is closed.
    OnAutoItExitRegister("OnAutoItExit")

    ; Assign Local variables the loopback IP Address and the Port.
    Local $sIPAddress = "192.168.0.79" ; This IP Address only works for testing on your own computer.
    Local $iPort = 33000 ; Port used for the connection.

    ; Assign a Local variable the socket and connect to a Listening socket with the IP Address and Port specified.
    Local $iSocket = TCPConnect($sIPAddress, $iPort)

    ; If an error occurred display the error code and return False.
    If @error Then
        ; The server is probably offline/port is not opened on the server.
        Local $iError = @error
        MsgBox(BitOR($MB_SYSTEMMODAL, $MB_ICONHAND), "", "Could not connect, Error code: " & $iError)
        Return False
    Else
        MsgBox($MB_SYSTEMMODAL, "", "Connection successful")
    EndIf
	
	TCPSend($iSocket, "RU_01")
	sleep(100)
	TCPSend($iSocket, @CRLF)
	sleep(1000)
	MyTCP_Server($sIPAddress, $iPort)

	   ; Close the socket.
   ; TCPCloseSocket($iSocket)
EndFunc   ;==>Example


Func MyTCP_Server($sIPAddress, $iPort)
msgbox(0,"gata","2")
    ; Assign a Local variable the socket and bind to the IP Address and Port specified with a maximum of 100 pending connexions.
    Local $iListenSocket = TCPListen($sIPAddress, $iPort, 100)
    Local $iError = 0
msgbox(0,"gata","2")
    If @error Then
        ; Someone is probably already listening on this IP Address and Port (script already running?).
        $iError = @error
        MsgBox(BitOR($MB_SYSTEMMODAL, $MB_ICONHAND), "", "Server:" & @CRLF & "Could not listen, Error code: " & $iError)
        Return False
    EndIf

    ; Assign a Local variable to be used by the Client socket.
    Local $iSocket = 0

    Do ; Wait for someone to connect (Unlimited).
        ; Accept incomming connexions if present (Socket to close when finished; one socket per client).
        $iSocket = TCPAccept($iListenSocket)

        ; If an error occurred display the error code and return False.
        If @error Then
            $iError = @error
            MsgBox(BitOR($MB_SYSTEMMODAL, $MB_ICONHAND), "", "Server:" & @CRLF & "Could not accept the incoming connection, Error code: " & $iError)
            Return False
        EndIf

        If GUIGetMsg() = $GUI_EVENT_CLOSE Then Return False
    Until $iSocket <> -1 ;if different from -1 a client is connected.

    ; Close the Listening socket to allow afterward binds.
    TCPCloseSocket($iListenSocket)

    ; Assign a Local variable the data received.
    Local $sReceived = TCPRecv($iSocket, 2048) ;we're waiting for the string "tata" OR "toto" (example script TCPRecv): 4 bytes length.

    ; Notes: If you don't know how much length will be the data,
    ; use e.g: 2048 for maxlen parameter and call the function until the it returns nothing/error.

    ; Display the string received.
    MsgBox($MB_SYSTEMMODAL, "", "Server:" & @CRLF & "Received: " & $sReceived)

    ; Close the socket.
    TCPCloseSocket($iSocket)
EndFunc   ;==>MyTCP_Server


Func OnAutoItExit()
    TCPShutdown() ; Close the TCP service.
EndFunc   ;==>OnAutoItExit