RasterCommentMetadataType Enumeration

List of available metadata comments.

Syntax

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public enum RasterCommentMetadataType : System.Enum, System.IComparable, System.IConvertible, System.IFormattable

'Declaration
 
Public Enum RasterCommentMetadataType 
   Inherits System.Enum
   Implements System.IComparable, System.IConvertible, System.IFormattable

'Usage
 
Dim instance As RasterCommentMetadataType

public enum RasterCommentMetadataType : System.IComparable, System.IConvertible, System.IFormattable

Leadtools.RasterCommentMetadataType = function() { };
Leadtools.RasterCommentMetadataType.prototype = {

  LeadtoolsMemberMarker(replace me)
 };

public enum class RasterCommentMetadataType : public System.Enum, System.IComparable, System.IConvertible, System.IFormattable

Members

Member

Description

Aperture

Aperture value. This is the ratio of lens aperture for the focal length. The unit of measure is APEX. Data type: RasterCommentMetadataDataType.URational. Length: 1.

Artist

Person who created the image. (TIFF Comment)

Brightness

Brightness value. Data type: RasterCommentMetadataDataType.Rational. Length: 1.

CfaPattern

CFA Pattern (Exif) - the color filter array (CFA) geometric pattern of the image sensor when a one-chip color sensor was applied. It does not apply to any other sensing methods. Data type: RasterCommentMetadataDataType. Undefined. Length: ANY This is an array m x n (horz x vertical), where the pattern is repeated every m pixels on the horizontal and n pixels on the vertical.

ColorSpace

Color space (Exif 2.0). Specifies whether the color is calibrated or not. LEADTOOLS always writes this value as 1. Data type: SHORT. Length: 1 Possible values are:

1	sRGB (PC monitor conditions)
0xFFFF	Uncalibrated
Other	reserved

Contrast

Direction of contrast processing applied by the camera when the image was shot. Data type: SHORT; Count: 1; Possible values are: 0 ( Normal), 1 (Soft), 2 (Hard), Other (Reserved); Default: 0.

Copyright

CustomRendered

Use of special processing on image data, such as rendering geared toward output. When special processing is performed, the reader is expected to disable or minimize any further processing. Data type: SHORT; Count: 1; Possible Values: 0 ( Normal process), 1 (Custom process), Other (Reserved). Default: 0;

DateTime

Date and time (YYYY:MM:DD HH:MM:SS). The field length is 20, counting the NULL terminator. (TIFF Comment)

DateTimeDigitized

Date and time the file is generated. If the file is generated directly, as with a digital camera, this is the same as the time the original image is captured. Data type: RasterCommentMetadataDataType.Ascii. Length: 20.

DateTimeOriginal

Date and time the original image is captured. The format is YYYY:MM:DD HH:MM:SS. The time is in a 24-hour format, and a blank space is left between the date and the time. Data type: RasterCommentMetadataDataType.Ascii. Length: 20.

Description

Description of the image. (TIFF Comment)

DeviceSettingDescription

Information on the picture-taking conditions of a particular camera model. Used only to indicate the picture-taking conditions in the reader. Data type: RasterCommentMetadataDataType.Ascii; Count: Any; The data is recorded in Unicode using SHORT fro the number of display rows and columns and RasterCommentMetadataDataType.Ascii for the camera settings. The Unicode (UCS -2) string including Signature is NULL terminated. The specifics of the Unicode string are as given in ISO/IEC 10464-1. Default: none.

DigitalZoomRatio

Digital zoom ratio set when the image was shot. If the numerator of the recorded value is 0, the digital zoom was not used. Data type: RasterCommentMetadataDataType.URational; Count: 1; Default: none.

Disclaimer

String containing the disclaimer of the software used to create the image.

ExifVersion

Exif version. LEADTOOLS always writes this value as 0110, meaning version 1.1. Data type: RasterCommentMetadataDataType.Ascii. Length: 4.

ExposureBias

Exposure bias. This is the value for correcting a biased exposure. The unit of measure is APEX. Data type: RasterCommentMetadataDataType.Rational. Length: 1.

ExposureIndex

Exposure index (Exif) - the image sensor type on the camera or input device. Data type: SHORT. Length: 1

ExposureMode

Exposure mode set when the image was shot. In auto-bracketing mode the camera shoots a series of frames of the same scene at different exposure settings. Tag: 41986; Data type: SHORT; Count: 1; Possible values are: 0 (Auto exposure), 1 (Manual exposure), 2 (Auto-bracket), Other (Reserved); Default: none.

ExposureProgram

Exposure program (Exif 2.0) The class of the program used by the camera to set exposure when the picture is taken. Data type: SHORT. Length = 1. Possible values are:

0	Not defined
1	Manual
2	Aperture priority
4	Shutter priority
5	Creative program (biased toward depth of field)
6	Action program (biased toward fast shutter speed)
7	Portrait mode (for closeup photos with the background out of focus)
Other	Reserved

ExposureTime

Exposure time, expressed as a fraction of a second. Data type: RasterCommentMetadataDataType.URational. Length: 1.

FileSource

File source (Exif) - the image source. If a digital camera recorded the image, the value will always be 3, to indicate that the image was recorded on a digital camera. Data type: SHORT. Length: 1 Possible values are:

3	Image recorded on a DSC (Digital Still Camera)
Other	Reserved

Flash

Flash On/Off. Possible values are 1 for on or 0 for off. Data type: SHORT. Length: 1.

Please refer to the EXIF specification for all possible values for EXIF comments.

FlashEnergy

Flash energy (Exif) - the strobe energy at the time the image is captured, as measured in Beam Candle Power Seconds (BPCS) Data type: RasterCommentMetadataDataType.URational. Length: 1

FNumber

The actual lens F stop (ratio of lens aperture to focal length). Data type: RasterCommentMetadataDataType.URational. Length: 1.

FocalLength

Focal length, measured in millimeters. Data type: RasterCommentMetadataDataType.URational. Length: 1.

FocalLengthIn35MMFilm

Equivalent focal length, assuming a 35mm film camera, in mm. A value of 0 means the focal length is unknown. Note that this comment is different from the RasterCommentMetadataType.FocalLength comment. Data type: SHORT; Count: 1; Default: none.

FocalPlaneResolutionUnit

Focal plane resolution unit (Exif). This is the resolution unit for the RasterCommentMetadataType.FocalPlaneXResolution and RasterCommentMetadataType.FocalPlaneYResolution comments.

FocalPlaneXResolution

Focal plane X Resolution (Exif) - the number of dots per resolution unit on the camera focal plane in the image width (X) direction

FocalPlaneYResolution

Focal plane Y Resolution (Exif) - the number of dots per inch on the camera focal plane in the image height (Y) direction

GainControl

Degree of overall image gain adjustment. Data type: SHORT; Count: 1; Possible values are: 0 (None), 1 (Low gain up), 2 (High gain up), 3 (Low gain down), 4 (High gain down), Other (Reserved); Default: none.

Gamma

Indicates the value of coefficient gamma. The formula of transfer function used for image reproduction is expressed as follows:
(Reproduced value) = (Input value) ^ (gamma).
(The Reproduced and Input values are normalized to be between 0 and 1). The gamma must be positive. Tag: 42240; Data Type: RasterCommentMetadataDataType.Rational; Count: 1; Default: none.

GpsAltitude

Altitude, in meters, relative to the reference altitude. Data type: RasterCommentMetadataDataType.URational. Length: 1.

GpsAltitudeRef

Reference altitude. In the current version, sea level is used as the reference, which must be zero. The reference unit is meters. Data type: BYTE. Length: 1.

GpsAreaInformation

Area. Data type: RasterCommentMetadataDataType.Byte. Length: Any.

GpsDateStamp

Date. Data type: SZ. Length: 11.

GpsDestinationBearing

Bearing to the destination point. The range of values is 0.00 to 359.00. Data type: RasterCommentMetadataDataType.URational. Length: 1.

GpsDestinationBearingRef

Reference for the bearing to the destination point. Possible values are "T" for a true direction and "M" for a magnetic. Data type: RasterCommentMetadataDataType.Ascii. Length: 2.

GpsDestinationDistance

Distance to the destination point. Data type: RasterCommentMetadataDataType.URational. Length: 1.

GpsDestinationDistanceRef

Unit for measuring distance to the destination point. Possible values are "K" for kilometers, "M" for miles, and "N" for nautical miles. Data type: RasterCommentMetadataDataType.Ascii. Length: 2.

GpsDestinationLatitude

Latitude of the destination point. The latitude is expressed as three RasterCommentMetadataDataType.URationalvalues, indicating degrees, minutes and seconds. Data type: RasterCommentMetadataDataType.URational. Length: 3.

GpsDestinationLatitudeRef

North or south latitude for the destination point. Possible values are "N" for north and "S" for south. Data type: RasterCommentMetadataDataType.Ascii. Length: 2.

GpsDestinationLongitude

Longitude of the destination point. The longitude is expressed as three RasterCommentMetadataDataType.URationalvalues, indicating degrees, minutes and seconds. Data type: RasterCommentMetadataDataType.URational. Length: 3.

GpsDestinationLongitudeRef

East or west longitude for the destination point. Possible values are "E" for east and "W" for west. Data type: RasterCommentMetadataDataType.Ascii. Length: 2.

GpsDifferential

Differential. Data type: Short. Length: 1.

GpsDop

DOP (data precision) value. This comment is an HDOP value during two-dimensional measurement and a PDOP value during three-dimensional measurement. Data type: RasterCommentMetadataDataType.URational. Length: 1.

GpsImageDirection

Direction of photography in the recorded image. The range of values is 0.00 to 359.00. Data type: RasterCommentMetadataDataType.URational. Length: 1.

GpsImageDirectionRef

Reference for the direction of photography in the recorded image. Possible values are "T" for a true direction and "M" for a magnetic. Data type: RasterCommentMetadataDataType.Ascii. Length: 2.

GpsLatitude

Latitude, expressed as three RasterCommentMetadataDataType.URational values. When expressed in degrees, minutes, and seconds, latitude is written as dd/1,mm/1,ss/1. If degrees and minutes are used as the units, and minutes are written with fractions to two decimal places, then latitude is expressed as dd/1,mmmm/100,0/1. Data type: RasterCommentMetadataDataType.URational. Length: 3.

GpsLatitudeRef

North or south latitude. Possible values are "N" for north and "S" for south. Data type: RasterCommentMetadataDataType.Ascii. Length: 2.

GpsLongitude

The longitude, expressed as three RasterCommentMetadataDataType.URational values. When expressed in degrees, minutes and seconds, longitude is written as ddd/1,mm/1,ss/1. If degrees and minutes are used as the units, and minutes are written with fractions to two decimal places, then longitude is expressed as dd/1,mmmm/100,0/1. Data type: RasterCommentMetadataDataType.URational. Length: 3.

GpsLongitudeRef

East or west longitude. Possible values are "E" for east and "W" for west. Data type: RasterCommentMetadataDataType.Ascii. Length: 2.

GpsMapDatum

Geodetic survey data used by the receiver. If the geodetic survey data is restricted to Japan, this tag value is " TOKYO " or "WGS-84". Data type: RasterCommentMetadataDataType.Ascii. Length: variable.

GpsMeasureMode

GPS measurement mode. A value of "2" denotes two-dimensional measurement, and "3" denotes three-dimensional measurement. Data type: RasterCommentMetadataDataType.Ascii. Length: 2.

GpsProcessingMethod

Processing method. Data type: RasterCommentMetadataDataType.Byte. Length: Any.

GpsSatellites

GPS satellites used for measurement. The coding format is not stipulated. This comment can be used to code information such as the number of satellites, the satellite number, the satellite angle of elevation, its azimuth, and its SNR. If the GPS receiver cannot make a measurement, this comment is NULL. Data type: RasterCommentMetadataDataType.Ascii. Length: variable.

GpsSpeed

Speed of the GPS receiver. Data type: RasterCommentMetadataDataType.URational. Length: 1.

GpsSpeedRef

Unit for measuring speed. Possible values are "K" for kilometers, "M" for miles, and "N" for knots. Data type: RasterCommentMetadataDataType.Ascii. Length: 2.

GpsStatus

Status of the GPS receiver at when the image is recorded. Possible values are "A" when measurement in progress and "V" when measurement is interrupted. Data type: RasterCommentMetadataDataType.Ascii. Length: 2.

GpsTimestamp

Time stamp in UTC (Coordinated Universal Time) time. The time is expressed as three RasterCommentMetadataDataType.URational values, for hours, minutes, and seconds. Data type: RasterCommentMetadataDataType.URational. Length: 3.

GpsTrack

Direction of GPS receiver movement. The range of values is 0.00 to 359.00. Data type: RasterCommentMetadataDataType.URational. Length: 1.

GpsTrackRef

Reference for direction of movement. Possible values are "T" for a true direction and "M" for a magnetic. Data type: RasterCommentMetadataDataType.Ascii. Length: 2

GpsVersionId

Version number of the GPS image file directory (IFD). The current version is 2.0.0.0. This comment must be included when any GPS comments are used. Unlike the RasterCommentMetadataType.ExifVersion comment, this comment is written in bytes. A version written as 2.0.0.0 is actually 0x02000000 when coded. Data type: BYTE. Length: 4.

HostComputer

Computer and operating system in use. (TIFF Comment)

ImageUniqueId

Identifier assigned uniquely to each image. It is recorded as an ASCII string equivalent to hexadecimal notation and 128-bit fixed length. Tag: 42016; Data type: RasterCommentMetadataDataType.Ascii; Count: 33; Default: none

IptcActionAdvised

2:42, Action advised. Non repeatable. Length = 2..2.

IptcAuthor

2:122, Writer/Editor. Repeatable. Length = 1..32.

IptcByline

2:80, By-line. Repeatable. Length = 1..32.

IptcBylineTitle

2:85, By-line title. Repeatable. Length = 1..32.

IptcCaption

2:120, Caption/Abstract. Non repeatable. Length = 1..2000.

IptcCategory

2:15, Category. Non repeatable. Length = 1..3.

IptcCity

2:90, City Non repeatable. Length = 1..32.

IptcContact

2:118, Contact. Repeatable. Length = 1..128.

IptcContentLocationCode

2:26, Content location code. Repeatable. Length = 3..3.

IptcContentLocationName

2:27, Content location name. Repeatable. Length = 1..64.

IptcCopyright

2:116, Copyright Notice. Non repeatable. Length = 1..128.

IptcCredit

2:110, Credit. Non repeatable. Length = 1..32.

IptcDateCreated

2:55, Date created. Non repeatable. Length = 8..8.

IptcDigitalCreationDate

2:62, Digital creation date. Non repeatable. Length = 8..8.

IptcDigitalCreationTime

2:63, Digital creation time. Non repeatable. Length = 11..11.

IptcEditorialUpdate

2:8, Editorial update. Non repeatable. Length = 2..2.

IptcEditStatus

2:7, Edit status. Non repeatable. Length = 1..64.

IptcExpirationDate

2:37, Expiration date. Non repeatable. Length = 8..8.

IptcExpirationTime

2:38, Expiration time. Non repeatable. Length = 11..11.

IptcFirst

The first IPTC comment To get all IPTC comments, use the comment type constant as a loop counter. The first constant is RasterCommentMetadataType.IptcFirst and the last is RasterCommentMetadataType.IptcLast.

IptcFixtureIdentifier

2:22, Fixture identifier. Non repeatable. Length = 1..32.

IptcHeadline

2:105, Headline. Non repeatable. Length = 1..256.

IptcKeywords

2:25, Keywords. Repeatable. Length = 1..64.

IptcLanguageIdentifier

2:135, Language identifier. Non repeatable. Length = 2..3.

IptcLast

The last IPTC comment.

IptcObjectAttributeReference

2:4, Object Attribute Reference. Repeatable. Length = 4..68.

IptcObjectCycle

2:75, Object cycle. Non repeatable. Length = 1..1.

IptcObjectName

2:5, Object name. Non repeatable. Length = 1..64.

IptcObjectTypeReference

2:3, Object type reference. Non repeatable. Length = 3..67.

IptcOriginalTransmissionReference

2:103, Original transmission reference. Non repeatable. Length = 1..32.

IptcOriginatingProgram

2:65, Originating program. Non repeatable. Length = 1..32.

IptcPrimaryLocationCode

2:100, Country/Primary location code. Non repeatable. Length = 3..3.

IptcPrimaryLocationName

2:101, Country/Primary location name. Non repeatable. Length = 1..64.

IptcProgramVersion

2:70, Program version. Non repeatable. Length = 1..10.

IptcProvinceState

2:95, Province/State. Non repeatable. Length = 1..32.

IptcReferenceDate

2:47, Reference date. Repeatable. Length = 8..8.

IptcReferenceNumber

2:50, Reference number. Repeatable. Length = 8..8.

IptcReferenceService

2:45, Reference service. Repeatable. Length = 1..10.

IptcReleaseDate

2:30, Release date. Non repeatable. Length = 8..8.

IptcReleaseTime

2:35, Release time. Non repeatable. Length = 11..11.

IptcSource

2:115, Source. Non repeatable. Length = 1..32.

IptcSpecialInstructions

2:40, Special instructions. Non repeatable. Length = 1..256.

IptcSubjectReference

2:12, Subject reference. Repeatable. Length = 13..236.

IptcSubLocation

2:92, Sub-location. Non repeatable. Length = 1..32.

IptcSupplementalCategory

2:20, Supplemental category. Repeatable. Length = 1..32.

IptcTimeCreated

2:60, Time created. Non repeatable. Length = 11..11.

IptcUrgency

2:10, Urgency. Non repeatable. '1' is most urgent, '5' = Normal, '8' is least urgent. Length = 1..1.

IptcVersion

2:0, the version of IPTC comments (read-only). Non-repeatable, (min=2 bytes, max=2). This is the only comment that is binary. The first byte is the lower version number (usually 0) and the second byte is the high version number (the current version is 4 - binary 4, not ascii '4'). LEADTOOLS writes 4 here.

IsoSpeedRatings

ISO speed ratings (Exif) - the ISO speed and the ISO Latitude of the camera or input device as specified in ISO 12232 Data type: SHORT. Length: any

Jpeg2000Binary

JPEG 2000 binary comment.

Jpeg2000Latin

JPEG 2000 Latin comment.

LightSource

Light source. Possible values are:

0	Unidentified
1	Daylight
2	Florescence light
3	Tungsten Lamp
17	Standard light source A
18	Standard light source B
19	Standard light source C
20	D55
21	D65
22	D75
255	Others

Data type: SHORT. Length: 1.

Make

Manufacturer of the equipment used to create the image. (TIFF Comment)

MakerNote

Maker note. Data type: RasterCommentMetadataDataType.Ascii. The creator of the file determines the data format.

MaxAperture

Minimum lens f-number. Data type: RasterCommentMetadataDataType.URational. Length: 1.

MeteringMode

Photometry mode. Possible values are:

0	Unidentified
1	Average
2	Center Weighted Average
3	Spot
4	MultiSpot
5	Pattern
6	Partial
255	Others

Data type: SHORT. Length: 1.

Misc

Miscellaneous information.

Model

Model name and number of the equipment. (TIFF Comment)

NameOfDocument

Name of the document from which the image was scanned. (TIFF Comment)

NameOfPage

Page name from which the image was scanned. (TIFF Comment)

OptoElectricCoefficient

Optoelectric coefficient (Exif) - Opto-Electric Conversion function specified in ISO 14524. OECF is the relationship between the camera optical input and the image values. Data type: RasterCommentMetadataDataType. Undefined. Length: ANY. This is an array of m rows and n columns.

PatientBirthdate

Patient birth date (DICOM)

PatientId

Patient ID (DICOM)

PatientName

Patient name (DICOM)

PatientSex

Patient sex (DICOM)

RelatedSoundFile

Related audio file (Exif) - the name of an audio file related to the image data. The name should be 8 ASCII chars + '.' + 3 chars for extension + NULL. Data type: RasterCommentMetadataDataType.Ascii. Length: 13.

Saturation

Direction of saturation processing applied by the camera when the image was shot. Data type: SHORT; Count: 1; Possible values are: 0 ( Normal), 1 (Low saturation), 2 (High saturation), Other (Reserved); Default: 0.

SceneCaptureType

Type of scene that was shot. It can also be used to record the mode in which the image was shot. Note that this differs from the RasterCommentMetadataType.SceneType comment. Data type: SHORT; Count: 1; Possible values are: 0 (Standard), 1 (Landscape), 2 (Portrait), 3 (Night scene), Other (Reserved); Default: 0.

SceneType

Scene type (Exif) - the type of scene. If a DSC recorded the image, this value will always be 1, indicating that the image was directly photographed. Data type: RasterCommentMetadataDataType.Ascii. Length: 1 Possible values are:

1	A directly photographed image
Other	Reserved

SensingMethod

Sensing method (Exif) - the image sensor type on the camera or input device. Data type: SHORT. Length: 1 Possible values are:

1	Not defined
2	One-chip color area sensor
3	Two-chip color area sensor
4	Three-chip color area sensor
5	Color sequential area sensor
7	Trilinear sensor
8	Color sequential sensor
other	Reserved

SeriesId

Series ID (DICOM)

SeriesModality

Series modality (DICOM)

SeriesNumber

Series number (DICOM)

Sharpness

Direction of sharpness processing applied by the camera when the image was shot. Data type: SHORT; Count: 1; Possible values are: 0 ( Normal), 1 (Soft), 2 (Hard), Other (Reserved); Default: 0.

ShutterSpeedValue

Shutter speed. The unit of measure is APEX. Data type: RasterCommentMetadataDataType.Rational. Length: 1.

Software

Name and version of the software package used to create the image. (TIFF Comment)

SpatialFrequencyResponse

Spatial frequency response (Exif) - the camera or input device spatial frequency table and SFR values in the direction of image width, image height and diagonal direction, as specified in ISO 12233. Data type: RasterCommentMetadataDataType.Ascii. Length: ANY This is an array of m rows and n columns.

SpectralSensitivity

Spectral sensitivity (Exif) - The spectral sensitivity of each channel of the camera used. It is an ASCII string compatible with the standard developed by the ASTM technical committee. Data type: RasterCommentMetadataDataType.Ascii. Length: any

StudyDate

Study date (DICOM)

StudyInstance

Study instance ID (DICOM)

StudyReferringPhysician

Referring physician (DICOM)

StudyTime

Study time (DICOM)

SubjectArea

Location and area of the main subject in the overall scene. Data type: SHORT. Count: 2 (Location of the subject is given in X, Y coordinates), 3 (Area of the main subject is given as a circle, X, Y, D, where X and Y are the center coordinates and D is the diameter.) and 4 (Area of the main subject is given as a rectangle, X, Y, W, H, where X and Y are the center coordinates, W is the width or the rectangle and H is the height of the rectangle.).

SubjectDistance

Distance from lens to subject (in meters). Data type: RasterCommentMetadataDataType.URational. Length: 1.

SubjectDistanceRange

Distance to the subject. Data type: SHORT; Count: 1; Possible values are: 0 (Unknown), 1 (Macro), 2 (Close view), 3 (Distant view), Other (Reserved); Default: none.

SubjectLocation

Subject location (Exif) - the location of the main subject in the scene. The first value is the X column number and the second is the Y row number. Data type: SHORT. Length: 2

SubSecTime

Decimal extension for seconds that are specified in the RasterCommentMetadataType.DateTime field. Data type: RasterCommentMetadataDataType.Ascii. Length: variable.

SubSecTimeDigitized

Decimal extension for seconds that are specified in the RasterCommentMetadataType. DateTimeDigitized field. Data type: RasterCommentMetadataDataType.Ascii. Length: variable.

SubSecTimeOriginal

Decimal extension for seconds that are specified in the RasterCommentMetadataType.DateTimeOriginal field. Data type: RasterCommentMetadataDataType.Ascii. Length: variable.

SupportedFlashPixVersion

Supported FlashPix version (Exif 2.0). LEADTOOLS always writes 0100 here. Data type: RasterCommentMetadataDataType. Undefined. Length: 4

Title

Title of the image.

UserComment

User comment. Data type: RasterCommentMetadataDataType.Ascii. Length: variable. The first eight bytes specify the data format, and the remainder of the comment is in the specified format. The first eight bytes can be any of the following:

41 53 43 49 49 00 00 00	ASCII
4A 49 53 00 00 00 00 00	JIS (Japanese)
00 00 00 00 00 00 00 00	Undefined

Warning

Warning statement associated with the software that created the image.

WhiteBalance

White balance mode set when the image was shot. Data type: SHORT; Count: 1; Possible values are: 0 (Auto white balance), 1 (Manual white balance), Other (Reserved); Default: none.

Remarks

When reading or updating Exif comments, you must specify the comment type. Comment fields are constrained by their Exif data type.

All Exif files (TIFF and JPG) can contain the designated TIFF comments. Each TIFF comment field can contain a character string. The maximum field size is 32K, except for the date-time field, which is always 20.

NOTE: Please refer to the EXIF specification for all possible values for EXIF comments.

For more information, refer to GIF File Comments.

For more information, refer to PNG File Comments.

For more information, refer to TIFF File Comments.

Inheritance Hierarchy

System.Object
   System.ValueType
      System.Enum
         Leadtools.RasterCommentMetadataType

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

Leadtools Namespace