#include <GUIConstants.au3> GUICreate ("My GUI (GetControlState)") $n=GUICtrlCreateCheckbox ("checkbox",10,10) GUICtrlSetState (-1,1) ; checked GUISetState () ; will display an empty dialog box ; Run the GUI until the dialog is closed While 1 $msg = GUIGetMsg() If $msg = $GUI_EVENT_CLOSE Then ExitLoop Wend msgbox (0,"state",StringFormat("GUICtrlRead=%d\nGUICtrlGetState=%d",GUICtrlRead($n),GUICtrlGetState($n)))