import wx
import wx.lib.agw.genericmessagedialog as GMD

class MainFrame(wx.Frame):
    def __init__(self, parent):
        super(MainFrame, self).__init__(parent)
        self.button1 = wx.Button(self, label="Nyit")
        self.button1.Bind(wx.EVT_BUTTON, self.on_click_button1)
        self.button2 = wx.Button(self, label="Másik")

        main_box = wx.BoxSizer(wx.VERTICAL)
        main_box.Add(self.button2)
        main_box.Add(self.button1)        
        self.SetSizer(main_box)

    def on_click_button1(self, event):
        dlg = GMD.GenericMessageDialog(self, 'Üzenet', 'Teszt',
            agwStyle=wx.ICON_INFORMATION | wx.OK)
        dlg.ShowModal()
        

class ValamiApp(wx.App):
    def OnInit(self):
        frame = MainFrame(None)
        frame.Show()
        return True

app=ValamiApp()
app.MainLoop()