code: def showMessage(self,
                      title,
                      message,
                      icon=QtGui.QSystemTrayIcon.Information,
                      timeout=10000):
          
          tray = self.trayIcon()
          if tray:
              tray.showMessage(title, message, icon, timeout)
docs: Displays a message to the user via the tray icon.
          
          :param      title   | <str>
                      message | <str>
                      icon    | <QtGui.QSystemTrayIcon.MessageIcon>
                      timeout | <int>