# -*- coding: cp1251 -*-

import wx

class Frame(wx.Frame):
    def __init__(self, parent):
        wx.Frame.__init__(self, parent)
        self.panel = wx.Panel(self)
        self.but = wx.Button(self.panel, label='Show Modal Frame')
        wx.EVT_BUTTON(self, self.but.GetId(), self.ShowFrame)
    def ShowFrame(self, evt):
        frame = ModalFrame(self)
        frame.Show()

class ModalFrame(wx.Frame):
    def __init__(self, parent):
        wx.Frame.__init__(self, parent, style=wx.DEFAULT_FRAME_STYLE | wx.STAY_ON_TOP)
        self.panel = wx.Panel(self)
        wx.EVT_KILL_FOCUS(self, self.OnKillFocus)
        wx.EVT_KILL_FOCUS(self.panel, self.OnKillFocus)
    def OnKillFocus(self, evt):
        self.SetFocus()

class App(wx.App):
    def __init__(self):
        wx.App.__init__(self)
        frame = Frame(None)
        frame.Show()

if __name__ == "__main__":
    app = App()
    app.MainLoop()