AN - Multifile Annotation Interface

ANannlen/afannlen	Returns the length of an annotation.
ANannlist/afannlist	Retrieves the annotation identifiers of an object.
ANatype2tag/afatypetag	Returns the annotation tag corresponding to an annotation type.
ANcreate/afcreate	Creates a data annotation for an object.
ANcreatef/affcreate	Creates a file annotation.
ANend/afend	Terminates access to an AN interface.
ANendaccess/afendaccess	Terminates access to an annotation.
ANfileinfo/affileinfo	Retrieves the number of annotations of each type in a file.
ANget_tagref/afgettagref	Retrieves the tag/reference number pair of an annotation given its index and type.
ANid2tagref/afidtagref	Retrieves the tag/reference number pair of an annotation given its identifier.
ANnumann/afnumann	Returns the number of annotations of a given type attached to an object.
ANreadann/afreadann	Reads an annotation.
ANselect/afselect	Obtains an existing annotation.
ANstart/afstart	Initializes the AN interface.
ANtag2atype/aftagatype	Returns the annotation type corresponding to an annotation tag.
ANtagref2id/aftagrefid	Returns the identifier of an annotation given its tag/reference number pair.
ANwriteann/afwriteann	Writes an annotation.