函数参考

_GUICtrlEdit_EmptyUndoBuffer

重置编辑控件撤消标志

#include <GuiEdit.au3>
_GUICtrlEdit_EmptyUndoBuffer($hWnd)

参数

$hWnd 控件的控件ID/句柄

返回值

None.

注意/说明

 每当编辑控件接收一个_GUICtrlEdit_SetText 操作,撤消标志自动复位.

相关

_GUICtrlEdit_CanUndo, _GUICtrlEdit_Undo

示例/演示


#include <GuiEdit.au3>
#include <GUIConstantsEx.au3>

$Debug_Ed = False ; Check ClassName being passed to Edit functions, set to True and use a handle to another control to see it work

_Main()

Func _Main()
    Local $hEdit

    ; 创建 GUI
    GUICreate("Edit Empty Undo Buffer", 400, 300)
    $hEdit = GUICtrlCreateEdit("This is a test" & @CRLF & "Another Line", 2, 2, 394, 268)
    GUISetState()

    _GUICtrlEdit_AppendText($hEdit, @CRLF & "Append to the end?")

    MsgBox(4160, "信息", "Can Undo: " & _GUICtrlEdit_CanUndo($hEdit))

    _GUICtrlEdit_EmptyUndoBuffer($hEdit)

    MsgBox(4160, "信息", "Can Undo: " & _GUICtrlEdit_CanUndo($hEdit))

    ; 循环直到用户退出
    Do
    Until GUIGetMsg() = $GUI_EVENT_CLOSE
    GUIDelete()
EndFunc   ;==>_Main