Dim xTime As String
Dim xWB As Workbook
 
Private Sub Workbook_Open()
'Updated by Extendoffice 2019/1/20
    On Error Resume Next
    xTime = Application.InputBox("Please specify the idle time:", "KuTool For Excel", "00:00:20", , , , , 2)
    Set xWB = ActiveWorkbook
    If xTime = "" Then Exit Sub
    Reset
End Sub
Private Sub Workbook_SheetActivate(ByVal Sh As Object)
    On Error Resume Next
    If xTime = "" Then Exit Sub
    Reset
End Sub
 
Private Sub Workbook_SheetChange(ByVal Sh As Object, ByVal Target As Range)
    On Error Resume Next
    If xTime = "" Then Exit Sub
    Reset
End Sub
 
Sub Reset()
    Static xCloseTime
    If xCloseTime <> 0 Then
        ActiveWorkbook.Application.OnTime xCloseTime, "SaveWork1", , False
    End If
    xCloseTime = Now + TimeValue(xTime)
    ActiveWorkbook.Application.OnTime xCloseTime, "SaveWork1", , True
End Sub