Lists all IPTC Record tags.

Values:

IGMDTAG_ID_IPTC_ENVELOPE_RECORD	Envelope record.
IGMDTAG_ID_IPTC_APPLICATION_RECORD	Application record.
IGMDTAG_ID_IPTC_DIG_NEWS_PHOTO_PAR_RECORD	Digital Newsphoto Pararameter record.
IGMDTAG_ID_IPTC_PREOBJ_DESC_RECORD	Pre-object record.
IGMDTAG_ID_IPTC_OBJECT_RECORD	Object record.
IGMDTAG_ID_IPTC_POSTOBJ_DESC_RECORD	Post-object record.