Method Calendar.Event.Day_Event()->scan_jd()

Method scan_jd

int scan_jd(Calendar.Calendar realm, int jd, int(-1)|int(1) direction)

Description

This method has to be defined, and is what really does some work.

Parameter direction

1	Forward (next),
-1	Backward (previous).

Returns

It should return the next or previous julian day (>jd) when the event occurs, or the constant NODAY if it doesn't.