Lists all EXIF tag identifiers.

Values:

IGMDTAG_ID_EXIF_JPEG_FORMAT	JPEG metadata format identifier.
IGMDTAG_ID_EXIF_TIFF_FORMAT	TIF metadata format identifier.
IGMDTAG_ID_EXIF_EXPOSURETIME	Exposure time.
IGMDTAG_ID_EXIF_FNUMBER	F number value.
IGMDTAG_ID_EXIF_EXPOSUREPROGRAM	Exposure program.
IGMDTAG_ID_EXIF_SPECTRALSENSITIVITY	Spectral sensitivity.
IGMDTAG_ID_EXIF_ISOSPEEDRATING	ISO speed ratings.
IGMDTAG_ID_EXIF_OECF	Indicates the Opto-Electric Conversion Function (OECF) specified in ISO 14524.
IGMDTAG_ID_EXIF_VERSION	Exif version.
IGMDTAG_ID_EXIF_DATETIMEORIGINAL	Date time original.
IGMDTAG_ID_EXIF_DATETIMEDIGITIZED	Date time digitized.
IGMDTAG_ID_EXIF_COMPONENTCONFIGURATION	Components configuration.
IGMDTAG_ID_EXIF_COMPRESSEDBITSPERPIXEL	Compressed bits per pixel.
IGMDTAG_ID_EXIF_SHUTTERSPEEDVALUE	Shutter speed value.
IGMDTAG_ID_EXIF_APERTUREVALUE	Aperture value.
IGMDTAG_ID_EXIF_BRIGHTNESSVALUE	Brightness value.
IGMDTAG_ID_EXIF_EXPOSUREBIASVALUE	Exposure bias value.
IGMDTAG_ID_EXIF_MAXAPERTUREVALUE	Max aperture value.
IGMDTAG_ID_EXIF_SUBJECTDISTANCE	Subject distance.
IGMDTAG_ID_EXIF_MATERINGMODE	Metering mode.
IGMDTAG_ID_EXIF_METERINGMODE	Metering mode.
IGMDTAG_ID_EXIF_LIGHTSOURCE	Light source.
IGMDTAG_ID_EXIF_FLASH	Indicates whether or not flash used when the image was captured.
IGMDTAG_ID_EXIF_FOCALLENGTH	Focal length.
IGMDTAG_ID_EXIF_SUBJECTAREA	Subject area.
IGMDTAG_ID_EXIF_MAKERNOTE	Maker note.
IGMDTAG_ID_EXIF_USERCOMMENT	User comment.
IGMDTAG_ID_EXIF_SUBSECTIME	Sub sec time.
IGMDTAG_ID_EXIF_SUBSECTIMEORIGINAL	Sub sec time original.
IGMDTAG_ID_EXIF_SUBSECTIMEDIGITIZED	Sub sec time digitized.
IGMDTAG_ID_EXIF_FLASHPIXVERSION	Flash pix version.
IGMDTAG_ID_EXIF_COLORSPACE	Color space.
IGMDTAG_ID_EXIF_PIXELXDIMENSION	Pixel X dimension.
IGMDTAG_ID_EXIF_PIXELYDIMENSION	Pixel Y dimension.
IGMDTAG_ID_EXIF_RELATEDSOUNDFILE	Related sound file.
IGMDTAG_ID_EXIF_INTEROPERABILITYIFD	Interoperability IFD pointer.
IGMDTAG_ID_EXIF_FLASHENERGY	Flash energy.
IGMDTAG_ID_EXIF_SPATIALFREQUENCYRESPONSE	Spatial frequency response.
IGMDTAG_ID_EXIF_FOCALPLANEXRESOLUTION	Focal plane X resolution.
IGMDTAG_ID_EXIF_FOCALPLANEYRESOLUTION	Focal plane Y resolution.
IGMDTAG_ID_EXIF_FOCALPLANERESOLUTIONUNIT	Focal plane resolution unit.
IGMDTAG_ID_EXIF_SUBJECTLOCATION	Subject location.
IGMDTAG_ID_EXIF_EXPOSUREINDEX	Exposure index.
IGMDTAG_ID_EXIF_SENSINGMETHOD	Sensing method.
IGMDTAG_ID_EXIF_FILESOURCE	File source.
IGMDTAG_ID_EXIF_SCENETYPE	Scene type.
IGMDTAG_ID_EXIF_CFAPATTERN	CFA pattern.
IGMDTAG_ID_EXIF_CUSTOMRENDERED	Custom rendered.
IGMDTAG_ID_EXIF_EXPOSUREMODE	Exposure mode.
IGMDTAG_ID_EXIF_WHITEBALANCE	White balance.
IGMDTAG_ID_EXIF_DIGITALZOOMRATIO	Digital zoom ratio.
IGMDTAG_ID_EXIF_FOCALLENGTHIN35MMFILM	Focal length in 35mm film.
IGMDTAG_ID_EXIF_SCENECAPTURETYPE	Scene capture type.
IGMDTAG_ID_EXIF_GAINCONTROL	Gain control.
IGMDTAG_ID_EXIF_CONTRAST	Indicates the direction of contrast processing applied by the camera when the image was shot.
IGMDTAG_ID_EXIF_SATURATION	Indicates the direction of saturation processing applied by the camera when the image was shot.
IGMDTAG_ID_EXIF_SHARPNESS	Indicates the direction of sharpness processing applied by the camera when the image was shot.
IGMDTAG_ID_EXIF_DEVICESETTINGDESCRIPTION	Device setting description.
IGMDTAG_ID_EXIF_SUBJECTDISTANCERANGE	Subject distance range.
IGMDTAG_ID_EXIF_IMAGEUNIQUEID	Indicates an identifier assigned uniquely to each image.
IGMDTAG_ID_EXIF_HEADER	This enumeration value is for internal use only.