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Asked: 2026-06-13T17:19:04+00:00

Well I have come up with some code to check what key is pressed,

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Well I have come up with some code to check what key is pressed, its pretty basic right now, but as I progress I will update here, the point is to get a key pressed whenever the key event takes place

import wx

class Example(wx.Frame):
    def __init__(self, *args,**kw):
        super(Example, self).__init__(*args,**kw)
        self.InitUI()
    def InitUI(self):
        #frame = wx.Frame(self, style=wx.FRAME_DRAWER | wx.STAY_ON_TOP, size = (100, 100))
        #pnl= wx.Panel(frame)
        pnl= wx.Panel(self)    
        pnl.Bind(wx.EVT_KEY_DOWN, self.OnKeyDown)
        self.st1 = wx.StaticText(self, label='', pos=(30, 10))
        pnl.SetFocus()
        self.SetSize((250,180))
        self.SetTitle('Key Press Event')
        self.Centre()
        self.Show(True)

    def OnKeyDown(self, e):
        key = e.GetKeyCode()
        if  key==wx.WXK_ESCAPE:
            self.st1.SetLabel("ESCAPE")
        elif key ==wx.WXK_CONTROL:
            self.st1.SetLabel("CTRL")
        elif key==wx.WXK_ALT:
            self.st1.SetLabel("ALT")
        elif key==wx.WXK_BACK:
            self.st1.SetLabel("BACKSPACE")
        elif key== wx.WXK_EXECUTE:
            self.st1.SetLabel("ENTER KEY")
def main():
    ex = wx.App()
    Example(None)
    ex.MainLoop()

if __name__=='__main__':
    main()

I am trying to to a borderless window for this but even if I put the panel in a frame with style= FRAME_DRAWER it doesnt work, neither does the STAY_ON_TOP so those two lines are commented please see if u can make it work..

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1 Answer

  1. Editorial Team

    Panels tend to eat key events or pass them on to other widgets. See

    http://wxpython-users.1045709.n5.nabble.com/Catching-key-events-from-a-panel-and-follow-up-to-stacked-panels-td2360109.html

    Which links to an old thread: http://article.gmane.org/gmane.comp.python.wxpython/50485

    Quoting Robin Dunn, creator of wxPython:

    • Bind a key event handler to all the widgets

    • *Catch the EVT_CHILD_FOCUS event and reset the focus back to where you
      want it to be whenever the focus changes to a child.*

    • Use a wx.AcceleratorTable instead of key events, so the keystrokes
      will be turned into menu events no matter which widget in the app has
      the focus.

    • Bind your key handler to the app instead of to the frame. All
      unhandled events are sent to the app object before they are abandoned,
      so whichever widget has the focus, if it doesn’t handle the key event
      itself then the app will get a chance at it.

    You might also find my old tutorial on key events enlightening as well.

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