Lists all CAL tag identifiers.

Values:

IGMDTAG_ID_CAL_FORMAT	CAL metadata format identifier.
IGMDTAG_ID_CAL_SPECVERSION	Spec version.
IGMDTAG_ID_CAL_SRCDOCID	Source system document identifier.
IGMDTAG_ID_CAL_DSTDOCID	Destination system document identifier.
IGMDTAG_ID_CAL_TXTFILID	Text file identifier. This record contains a string indicating the document page that this image page contains.
IGMDTAG_ID_CAL_FIGID	Figure or table identifier. This is the number by which the image page figure is referenced.
IGMDTAG_ID_CAL_RTYPE	Raster data type. This is the format of raster image data that follows the header record data block in this file.
IGMDTAG_ID_CAL_RORIENT	Raster image orientation.
IGMDTAG_ID_CAL_RPELCNT	Raster image pel count.
IGMDTAG_ID_CAL_RDENSITY	Raster image density.
IGMDTAG_ID_CAL_SRCGPH	Source system graphics filename.
IGMDTAG_ID_CAL_DOCCLS	Document security label.
IGMDTAG_ID_CAL_FOSIPUBID	PUBLIC identifier of an associated FOSI.
IGMDTAG_ID_CAL_NOTES	Notes information that is not applicable to any of the other records in the CALS raster file header.