Create and display application frame.

def OnInit(self):
        """Create and display application frame."""
        self.frame = SimpleSCardAppFrame(
            self.appname,
            self.apppanel,
            self.appstyle,
            self.appicon,
            self.pos,
            self.size)
        self.frame.Show(True)
        self.SetTopWindow(self.frame)

        return True