ItemExists - OT inTag Type Longint inTag String Function result Number handle objectrarr Tag item query rarr given item exists ItemExists tests existence given item inTag refer top level item embedded object embedded itemIf inObject not valid object handle error generated set zero zero returnedIf item given tag exists returned Otherwise zero returned

OT ItemExists

OT ItemExists(inObject; inTag) Number

→

Parameter Type Description

inObject Longint inTag String Function result Number A handle to an object

→ Tag of the item to query → 1 if the given item exists, 0 if not←

Discussion

OT ItemExists tests for the existence of the given item. inTag may refer to a top level item, an embedded object or an embedded item.

If inObject is not a valid object handle, an error is generated, OK is set to zero, and zero is returned.

If an item with the given tag exists, 1 is returned. Otherwise zero is returned.

Topics of Interest
Object Info Routines
OT IsObject
OT IsEmbedded
Item Info Routines

Published date: Fri, 14 Jul 2006 18:39:05 GMT → View XML Version

Edit this page now