title: Check if key is held down, wxpython?
body: <p>Hello i am wondering if there is a way to check if a certain key is being held down.</p>
  
  <p>Here is an example of the situation</p>
  
  <pre><code>self.button2.Bind(wx.EVT_LEFT_DOWN, self.clickedbutton)
  def clickedbutton(self, e):
      if (Control is held down while the button has been clicked):
          print "it works"
  </code></pre>
  
  <p>Thanks</p>