windows handler questions

[erezlevi]

hi,

I have two questions:

1) is @autoitPID is the windows handler of the script or I need to convert it to number?

2) what are the best ways (except using _sendmessage and guiregistermsg and wingethandle) to send and recieve a handler to/from external application that runs on a different lang?

Thanks to all of those that will give me answers.

[rasim]

1. This?

#include <GuiConstants.au3>

$hGui = GUICreate("Test", 300, 200)

GUISetState()

If @AutoItPID = WinGetProcess($hGui) Then MsgBox(0, "", @AutoItPID)

Do
    Until GUIGetMsg() = -3

[rasim]

2. From the help.