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

Global $lblMsg, $hRichEdit

Main()

Func Main()
	Local $hGui, $btnNext, $iStep = 0
	$hGui = GUICreate(StringTrimRight(@ScriptName, 4), 420, 350, -1, -1)
	$hRichEdit = _GUICtrlRichEdit_Create($hGui, 'Это тест.', 10, 10, 400, 220, _
			BitOR($ES_MULTILINE, $WS_VSCROLL, $ES_AUTOVSCROLL))
	$lblMsg = GUICtrlCreateLabel("", 10, 235, 300, 60)
	$btnNext = GUICtrlCreateButton("Далее", 270, 310, 60, 30)
	GUISetState()

	While 1
		Switch GUIGetMsg()
			Case $GUI_EVENT_CLOSE
				_GUICtrlRichEdit_Destroy($hRichEdit)
				GUIDelete()
				Exit
			Case $btnNext
				$iStep += 1
				Switch $iStep
					Case 1
						Report("1. Текущие установки измерения: ")
					Case 2
						_GUICtrlRichEdit_SetSpaceUnit("cm")
						Report("2. Новые установки измерения: ")
						GUICtrlSetState($btnNext, $GUI_DISABLE)
				EndSwitch
		EndSwitch
	WEnd
EndFunc   ;==>Main

Func Report($sMsg)
	$sMsg &= _GUICtrlRichEdit_GetSpaceUnit()
	GUICtrlSetData($lblMsg, $sMsg)
	ControlFocus($hRichEdit, "", "")
EndFunc   ;==>Report