Unknown Event recieved from Panel

1

question

I recieved wx.MENU event from wx.Panel when press ctrl+enter key.
But I dont use menu and acceleratorTable.
Why this event occurd?

environment

  • wxPython v4.1.1
  • windows10 1903
  • Python 3.8

sample code

import wx
def menuEvent(event):
	print(event.GetId())
app=wx.App()
frame=wx.Frame(None)#,-1,"test")
panel=wx.Panel(frame)
frame.Bind(wx.EVT_MENU,menuEvent)
frame.Show()
app.MainLoop()