Requests calendar information from the server. Does not open the calendar frame.
- Fires CALENDAR_UPDATE_EVENT_LIST, when your query has finished processing on the server and new calendar information is available.
- If called during the loading process, (even at PLAYER_ENTERING_WORLD) the query will not return.
- Patch 8.0.1 (2018-07-17): Moved to C_Calendar.OpenCalendar.
- Patch 3.0.2 (2008-10-14): Added as OpenCalendar.