[Forums] Calendar date range change

How would I go about capturing when a user changes the calendars date range. For example they click the previous or next buttons or they change to Month/Week/Day views. I would need to know when this happens in Outsystems to requery for my events that I put on the calendar. Also when the page initially loads, how can I get the calendars date range so I can use it to query for calendar events in my database?

Thanks!