Lists all XMP tag identifiers.

Values:

IGMDTAG_ID_XMP_FORMAT	XMP Metadata Format identifier.
IGMDTAG_ID_XMP_DESCRIPTION	XMP Schema tree.
IGMDTAG_ID_XMP_NAMESPACE	Namespace tree.
IGMDTAG_ID_XMP_PREFIX	Namespace prefix value.
IGMDTAG_ID_XMP_URI	Namespace URI value.
IGMDTAG_ID_XMP_ABOUT	About attribute value.
IGMDTAG_ID_XMP_PROPERTIES	Properties tree.
IGMDTAG_ID_XMP_PROPERTY	Property tree.
IGMDTAG_ID_XMP_PROPERTY_VALUE	Property value.
IGMDTAG_ID_XMP_PROPERTY_LANG	Language alternative tree.
IGMDTAG_ID_XMP_PROPERTY_QUA	Qualifiers tree.
IGMDTAG_ID_XMP_PROPERTY_BAG	Bag of values (unordered array) tree.
IGMDTAG_ID_XMP_PROPERTY_ALT	Alternative array of values tree.
IGMDTAG_ID_XMP_PROPERTY_SEQ	Sequence of values (ordered array) tree.
IGMDTAG_ID_XMP_PROPERTY_STRUCT	Structure tree.

Remarks:

These identifiers represent structural types of XMP metadata, such as Value, Sequence, Bag, Qualifier, etc. ImageGear does not provide enumerations for particular properties of XMP schemes. For more information about XMP metadata support, see the "Working with XMP Metadata" section of Access Image Metadata.