Events

All events have the input parameter - identifier (ID) of entity that triggered an event.

Event	is called
OnCalendarEntryAdd	when event is added.
OnCalendarEntryUpdate	when event is modified.
OnCalendarEntryDelete	when event is deleted.
OnCalendarSectionAdd	when CALENDAR_SECTION_ID section is added. Also is called when resource is added. Note: Technologically, resource equals to section, i. e. created resources are placed in a special type of calendars and a section is created for each resource. Likewise, when resources are added or deleted, these events will be triggered.
OnCalendarSectionUpdate	when modifying section/resource.
OnCalendarSectionDelete	when deleting section/resource.