Create Event in Calendar

Is there code/library to read/write events / appointments in the Android Calendar?

Also has anyone figured out how to email an appointment
by creating it in a ICS attachement like this:

BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//hacksw/handcal//NONSGML v1.0//EN
BEGIN:VEVENT
DTSTART:30080330
DTEND:30080331
SUMMARY:Brunch with Lady Gaga
LOCATIONaris
END:VEVENT
END:VCALENDAR



http://en.wikipedia.org/wiki/ICalendar