Lists all Digital Camera RAW tag identifiers.

Values:

IGMDTAG_ID_DCRAW_FORMAT	DCRAW metadata format identifier.
IGMDTAG_ID_DCRAW_COMMON	Common metadata section.
IGMDTAG_ID_DCRAW_IMAGEWIDTH	Image width.
IGMDTAG_ID_DCRAW_IMAGEHEIGHT	Image height.
IGMDTAG_ID_DCRAW_BITSPERSAMPLE	Bits per sample.
IGMDTAG_ID_DCRAW_PHOTOMETRICINTERPRETATION	Photometric interpretation.
IGMDTAG_ID_DCRAW_SAMPLESPERPIXEL	Samples per pixel.
IGMDTAG_ID_DCRAW_UNIQUECAMERAMODEL	Unique camera model.
IGMDTAG_ID_DCRAW_MAKE	Camera producer.
IGMDTAG_ID_DCRAW_MODEL	Camera model.
IGMDTAG_ID_DCRAW_TIMESTAMP	Time stamp.
IGMDTAG_ID_DCRAW_CFAREPEATPATTERNDIM	CFA repeat pattern dim.
IGMDTAG_ID_DCRAW_CFAPATTERN	CFA pattern.
IGMDTAG_ID_DCRAW_BLACKLEVELREPEATDIM	Black level repeat dim.
IGMDTAG_ID_DCRAW_BLACKLEVEL	Black level.
IGMDTAG_ID_DCRAW_ASSHOTNEUTRAL	As shot neutral.
IGMDTAG_ID_DCRAW_STATISTICS	Statistics metadata section.
IGMDTAG_ID_DCRAW_WHITELEVEL	White level.
IGMDTAG_ID_DCRAW_CALIBRATIONILLUMINANT1	Calibration illuminant 1.
IGMDTAG_ID_DCRAW_CALIBRATIONILLUMINANT2	Calibration illuminant 2.
IGMDTAG_ID_DCRAW_COLORMATRIX1	Color matrix 1.
IGMDTAG_ID_DCRAW_COLORMATRIX2	Color matrix 2.
IGMDTAG_ID_DCRAW_BASELINEEXPOSURE	Baseline exposure.