Returns the index of the selected entry on the selected event's invite/signup list. In the current default UI, selection behavior in the invite list is implemented but disabled; selecting an invite list entry has no effect on the behavior of other APIs.
See also Calendar functions.
Signature:
index = CalendarEventGetSelectedInvite()
Returns:
index- Index of a character on the event's invite list (between 1 and CalendarEventGetNumInvites()), or 0 if no selection has been made (number)