Как сделать более адекватную проверку условий для остановки скрипта?

While 1
	$nMsg = GUIGetMsg()
	Switch $nMsg
		Case $GUI_EVENT_CLOSE
			SaveSettings()
			Exit
		Case $StartAutoBuff
			$STOP = False
			HotKeySet("{F10}", "_Stop")
			GUICtrlSetData ($StartAutoBuff, "СТОП")
			ReadInfo()
			AutoBuff()
			GUICtrlSetData ($StartAutoBuff, "СТАРТ")
			HotKeySet("{F10}")
			WinActivate($BOTWindowName)
	EndSwitch
WEnd

Func _Stop()
	$STOP = True
EndFunc

While Not $STOP

While Not $STOP And $nMsg <> $GUI_EVENT_CLOSE And $nMsg <> $StartAutoBuff

Func _Stop()
	If $nMsg = $GUI_EVENT_CLOSE Or $nMsg = $StartAutoBuff Then Return True
	Return False
EndFunc

While Not _Stop()

Global $bStop = False
HotKeySet("{F10}", "_Stop")

While 1
    $nMsg = GUIGetMsg()
    Switch $nMsg
		Case $GUI_EVENT_CLOSE
			SaveSettings()
			Exit
        Case $StartAutoBuff
			$bStop = Not $bStop
			If $bStop Then 
			           GUICtrlSetData ($StartAutoBuff, "Старт")
				ReadInfo()
				AutoBuff()
			Else
				 GUICtrlSetData ($StartAutoBuff, "Стоп")
			EndIf
	EndSwitch
WEnd

Func _Stop()
	If $bStop Then Exit
EndFunc

While Not $STOP

$Button1 = GUICtrlCreateButton("Button1", 333, 189, 97, 65)
GUICtrlSetOnEvent($Button1, "_Stop")

Func _Stop()
	$STOP = True
EndFunc

#include <GUIConstants.au3>

Global $hGUI, $hButton, $sMessage = 'null', $fInterrupt = False
$hGUI = GUICreate('test')
$hButton = GUICtrlCreateButton('Start', 10, 20, 100, 30)
GUISetState()

While 1
	$msg = GUIGetMsg()
	Select
		Case $msg = $GUI_EVENT_CLOSE
			ConsoleWrite('Закрытие приложения' & @CRLF)
			Exit
		Case $msg = $hButton
			$fInterrupt = False
			GUICtrlSetData($hButton, 'Stop')
			AdlibRegister('_InterruptCheck')
			ConsoleWrite('Старт функции' & @CRLF)
			$sOut = _process()
			ConsoleWrite('Остановка функции ['  & $sOut & ']' & @CRLF)
			AdlibUnRegister('_InterruptCheck')
			GUICtrlSetData($hButton, 'Start')
	EndSelect
WEnd

Func _process()
	While 1
		If $fInterrupt Then Return($sMessage)
		Sleep(100)
	WEnd
EndFunc

Func _InterruptCheck()
	$hMsg = GUIGetMsg()
	Select
		Case $hMsg = $GUI_EVENT_CLOSE
			$sMessage = 'Была нажата кнопка закрытия приложения'
			$fInterrupt = True
		Case $hMsg = $hButton
			$sMessage = 'Была нажата кнопка Stop'
			$fInterrupt = True
	EndSelect
EndFunc

Return('Баффинг завершен нормально')

If $fInterrupt Then Return($sMessage)