防止程序二次启动②

 

  Sub main()Sub  main（） As Integer

      Dim hMutex As New System.Threading.Mutex(False, Application.ProductName)

            '没有二次启动
            If hMutex.WaitOne(0, False) = True Then
            
             ‘TODO
               
            Else '二次启动的时候
               
                GC.KeepAlive(hMutex)

                hMutex.Close()

             Return   ERRORCODE

            End If

   End Sub