副文本。如何实现文本按钮，请高手赐教！

网络凯子

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

$Form1 = GUICreate("输入/选择焦点切换", 300, 240)
$hRichEdit1 = _GUICtrlRichEdit_Create($Form1, "", 8, 16, 273, 145, BitOR($ES_MULTILINE, $WS_VSCROLL, $ES_READONLY, $ES_AUTOVSCROLL))
_GUICtrlRichEdit_AppendText($hRichEdit1, @CR & "This is appended text.")
_GUICtrlRichEdit_AutoDetectURL($hRichEdit1, True)
_GUICtrlRichEdit_AppendText($hRichEdit1, @CR & "http://www.autoitscript.com")

$Input1 = GUICtrlCreateInput("", 8, 168, 273, 21)
$Button1 = GUICtrlCreateButton("富文本", 8, 200, 81, 25)
$Button2 = GUICtrlCreateButton("Input框", 96, 200, 89, 25)
$Button3 = GUICtrlCreateButton("退出", 192, 200, 89, 25)
GUISetState(@SW_SHOW)

While 1
        $nMsg = GUIGetMsg()
        Switch $nMsg
                Case $GUI_EVENT_CLOSE
                        GUIDelete();一定要加上否则退出后进程都还在
                        Exit
                Case $Button1
                        ControlFocus("输入/选择焦点切换", "", 'RICHEDIT50W1')
                Case $Button2
                        GUICtrlSetState($Input1, $GUI_FOCUS)
                Case $Button3
                        GUIDelete();一定要加上否则退出后进程都还在
                        Exit
        EndSwitch
WEnd


副文本，，创建按钮，点击就可以调用程序。。请高手赐教！