Check that the ID is
not NIL.
If the item is structured get the noticeboard modified count.
If the item is primitive get the item
’
s modified count.
Return TRUE (1) if the modified count is greater than the count the last time that this routine was
called.
Return FALSE (0) otherwise.
Remember the modified count for next time.
For structured items, always use the same ID, since the remembered count is associated with the ID
and not with the noticeboard.
ID = INTEGER (Given)
Identifier of the item for which to determine whether it has been
updated since the last call on its behalf.
UPDATED = INTEGER (Returned)
Whether updated (1) or
not (0).
STATUS = INTEGER (Given and returned)
The global status. Possible return values
are,