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

Example()

Func Example()
        Local $idCombo

        ; Create GUI
        GUICreate("ComboBox Get Locale Primary Language id", 400, 296)
        $idCombo = GUICtrlCreateCombo("", 2, 2, 396, 296)
        GUISetState(@SW_SHOW)

        ; Add files
        _GUICtrlComboBox_BeginUpdate($idCombo)
        _GUICtrlComboBox_AddDir($idCombo, @WindowsDir & "\*.exe")
        _GUICtrlComboBox_EndUpdate($idCombo)

        ; Show locale, country code, language identifier, primary language id, sub-language id
        MsgBox($MB_SYSTEMMODAL, "Information", _
                        "Locale .................: " & _GUICtrlComboBox_GetLocale($idCombo) & @CRLF & _
                        "Country code ........: " & _GUICtrlComboBox_GetLocaleCountry($idCombo) & @CRLF & _
                        "Language identifier..: " & _GUICtrlComboBox_GetLocaleLang($idCombo) & @CRLF & _
                        "Primary Language id : " & _GUICtrlComboBox_GetLocalePrimLang($idCombo) & @CRLF & _
                        "Sub-Language id ....: " & _GUICtrlComboBox_GetLocaleSubLang($idCombo))

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