[Элементы GUI] А как создать и использовать CheckBox в своей программе?

#include <ButtonConstants.au3>
#include <GUIConstantsEx.au3>
#include <ProgressConstants.au3>
#include <WindowsConstants.au3>

Global $Opera_Dir = "D:\Opera AC_3.7.8_new"
Global $Backup_Dir = @ScriptDir & "\Op_Backup"

$backup_opera_AC = GUICreate("backup_opera_AC", 546, 366, 212, 90)
GUISetIcon($Opera_Dir & "\OperaAC.exe")
GUISetCursor(2)
$Checkbox1 = GUICtrlCreateCheckbox("Почта", 40, 40, 81, 25)
$Checkbox2 = GUICtrlCreateCheckbox("Сессии", 40, 70, 81, 25)
$Checkbox3 = GUICtrlCreateCheckbox("Контакты", 40, 100, 81, 25)
$Checkbox4 = GUICtrlCreateCheckbox("Пароли", 40, 130, 81, 25)
$Checkbox5 = GUICtrlCreateCheckbox("Список загрузок", 40, 160, 121, 25)
$Checkbox6 = GUICtrlCreateCheckbox("Глобальная история", 40, 190, 129, 25)
$Checkbox7 = GUICtrlCreateCheckbox("Набранные адреса в адресной строчке", 40, 220, 241, 25)
$Checkbox8 = GUICtrlCreateCheckbox("Поиск", 40, 250, 73, 25)
$Progress1 = GUICtrlCreateProgress(32, 304, 329, 40)
GUICtrlSetColor(-1, 0x008000)
$Button1 = GUICtrlCreateButton("backup", 384, 304, 139, 40, $WS_GROUP)

GUISetState(@SW_SHOW)

While 1
	$nMsg = GUIGetMsg()
	
	Switch $nMsg
		Case $GUI_EVENT_CLOSE
			Exit
		Case $Button1
			DirCreate($Backup_Dir)
			
			If GUICtrlRead($Checkbox1) = $GUI_CHECKED Then
				GUICtrlSetData($Progress1, 10)
				DirCopy($Opera_Dir & "\profile\mail", $Backup_Dir & "\mail")
			EndIf
			
			If GUICtrlRead($Checkbox2) = $GUI_CHECKED Then
				GUICtrlSetData($Progress1, 20)
				DirCopy($Opera_Dir & "\profile\sessions", $Backup_Dir & "\sessions")
			EndIf
			
			;и т.д.
	EndSwitch
WEnd