#include <GUIConstantsEx.au3>
#include <GuiMonthCal.au3>
#include <WindowsConstants.au3>

Global $g_idMemo

Example()

Func Example()
        ; Create GUI
        GUICreate("Month Calendar Get/Set First DOW (v" & @AutoItVersion & ")", 420, 300)
        Local $idMonthCal = GUICtrlCreateMonthCal("", 4, 4, -1, -1, $WS_BORDER, 0x00000000)

        ; Create memo control
        $g_idMemo = GUICtrlCreateEdit("", 4, 168, 412, 128, 0)
        GUICtrlSetFont($g_idMemo, 9, 400, 0, "Courier New")
        GUISetState(@SW_SHOW)

        ; Get/Set first DOW
        _GUICtrlMonthCal_SetFirstDOW($idMonthCal, 0)
        MemoWrite("First DOW : " & _GUICtrlMonthCal_GetFirstDOW($idMonthCal))

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

; Write message to memo
Func MemoWrite($sMessage)
        GUICtrlSetData($g_idMemo, $sMessage & @CRLF, 1)
EndFunc   ;==>MemoWrite