self.Bind(wx.EVT_PAINT, self.OnPaint)
         self.Bind(wx.EVT_TIMER, self.OnTimer, self.timer)
         self.Bind(wx.EVT_WINDOW_DESTROY, self.OnDestroyWindow)
         self.Bind(wx.EVT_PAINT, self.OnPaint)
         self.Bind(wx.EVT_TIMER, self.OnTimer, self.timer)
         self.Bind(wx.EVT_WINDOW_DESTROY, self.OnDestroyWindow)