You don't...  JScript doesn't support ByRef arguments.

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Michael Harris
MVP Scripting

How on earth do you get MSWinsock.Winsock's GetData() working from JScript?

All the VBScript examples I can find use

    Dim s As String
    GetData s, vbString

which I've translated to

    var s = "    ";
    socket.GetData(s, 8);

but this fails to read any data into the string 's'. I've tried all sorts of
combinations of JScript objects for 's' (including Number and String
objects) and VB data type codes in place of '8', but I just can't get it
working.

I'm using cscript.exe - "Microsoft (R) Windows Script Host Version 5.1 for
Windows" and "Microsoft Winsock Control 6.0" running under NT 4 Workstation
SP6a.

Example source is included below. I'm testing this by telneting to port 6239
and typing 'a'.

Any pointers / help would be much appreciated.

Thanks,
- Lee

var wshShell = WScript.CreateObject("WScript.Shell");

function print(msg)
{
   WScript.Echo(msg);

var listener;

function listen()
{
   listener = WScript.CreateObject("MSWinsock.Winsock", "listener_");

   listener.localPort = 6239;
   listener.bind();
   listener.listen();

   print("Listening");

var connections = new Object();

function listener_ConnectionRequest(requestID)
{
   print("Connection request " + requestID);

   var connection = connections[requestID] =
WScript.CreateObject("MSWinsock.Winsock", "listener_");

   connection.accept(requestID);

   connection.sendData("Prompt> ");

function listener_DataArrival(length)
{
   print("Accepted " + length + " bytes " + this.socketHandle);

   var str = "\0\0\0\0\0";

   this.getData(str, 8);

   print(":" + str);

function idle()
{
   var ret = 0;

   while (ret != 1)
   {
      ret = wshShell.Popup("Running...", 36000);
   }

function run()
{
   print("Init");
   listen();
   idle();

run();

How on earth do you get MSWinsock.Winsock's GetData() working from JScript?

All the VBScript examples I can find use

    Dim s As String
    GetData s, vbString

which I've translated to

    var s = "    ";
    socket.GetData(s, 8);

but this fails to read any data into the string 's'. I've tried all sorts of
combinations of JScript objects for 's' (including Number and String
objects) and VB data type codes in place of '8', but I just can't get it
working.

I'm using cscript.exe - "Microsoft (R) Windows Script Host Version 5.1 for
Windows" and "Microsoft Winsock Control 6.0" running under NT 4 Workstation
SP6a.

Example source is included below. I'm testing this by telneting to port 6239
and typing 'a'.

Any pointers / help would be much appreciated.

Thanks,
- Lee

var wshShell = WScript.CreateObject("WScript.Shell");

function print(msg)
{
   WScript.Echo(msg);

var listener;

function listen()
{
   listener = WScript.CreateObject("MSWinsock.Winsock", "listener_");

   listener.localPort = 6239;
   listener.bind();
   listener.listen();

   print("Listening");

var connections = new Object();

function listener_ConnectionRequest(requestID)
{
   print("Connection request " + requestID);

   var connection = connections[requestID] =
WScript.CreateObject("MSWinsock.Winsock", "listener_");

   connection.accept(requestID);

   connection.sendData("Prompt> ");

function listener_DataArrival(length)
{
   print("Accepted " + length + " bytes " + this.socketHandle);

   var str = "\0\0\0\0\0";

   this.getData(str, 8);

   print(":" + str);

function idle()
{
   var ret = 0;

   while (ret != 1)
   {
      ret = wshShell.Popup("Running...", 36000);
   }

function run()
{
   print("Init");
   listen();
   idle();

run();

I was afraid someone was going to say that.

Can you think of any work-arounds? Does it sound feasible to say write the
socket code as a VBScript component which itself is called from some JScript
running under cscript.exe?

Thanks,
- Lee

You don't...  JScript doesn't support ByRef arguments.

--
Michael Harris
MVP Scripting