I want to make a Listener Application that can listen to a few system( setting) changes and just display a text saying that this particualr setting has been changed in the main screen. I understand that the handing of the setting changes are done in OnSetting Changed() . However my query is that how can we display a text message in the main screen when my application is in the background?  Displaying a message while the application is active is possible by using the MessageBox class but how can we display the same message when our application is no longer in the foreground?

void MyApp::OnSettingChanged (Tizen::Base::String & key )