#include <GUIConstantsEx.au3>
#include <GuiListBox.au3>
#include <MsgBoxConstants.au3>

Example()

Func Example()
        Local $idListBox

        ; Create GUI
        GUICreate("List Box Get Locale Primary Language id", 400, 296)
        $idListBox = GUICtrlCreateList("", 2, 2, 396, 296)
        GUISetState(@SW_SHOW)

        ; Show locale, country code, language identifier, primary language id, sub-language id
        MsgBox($MB_SYSTEMMODAL, "Information", _
                        "Locale .................: " & _GUICtrlListBox_GetLocale($idListBox) & @CRLF & _
                        "Country code ........: " & _GUICtrlListBox_GetLocaleCountry($idListBox) & @CRLF & _
                        "Language identifier..: " & _GUICtrlListBox_GetLocaleLang($idListBox) & @CRLF & _
                        "Primary Language id : " & _GUICtrlListBox_GetLocalePrimLang($idListBox) & @CRLF & _
                        "Sub-Language id ....: " & _GUICtrlListBox_GetLocaleSubLang($idListBox))

        ; Loop until the user exits.
        Do
        Until GUIGetMsg() = $GUI_EVENT_CLOSE
        GUIDelete()
EndFunc   ;==>Example