When reading or updating TIFF comments, you must specify the comment type using the following constants.
For a loop counter:
Value | Meaning |
---|---|
CMNT_LAST | Last defined -number for comments. To get all comments, you can use the comment type constant as a loop counter. The first constant is 0 and the last is CMNT_LAST. |
For TIFF files: Each comment field can contain a character string. The maximum field size is 32K, except for the date-time field, which is always 20.
Please note that LEADTOOLS also supports IPTC Comments, which can be saved inside TIFF files. For more information, refer to IPTC Comments.
Value | Meaning |
---|---|
CMNT_SZARTIST | [0] Person who created the image. |
CMNT_SZCOPYRIGHT | [1] Copyright notice. |
CMNT_SZDATETIME | [2] Date and time (YYYY:MM:DD HH:MM:SS). The field length is 20, counting the NULL terminator. |
CMNT_SZDESC | [3] Description of the image. |
CMNT_SZHOSTCOMP | [4] Computer and operating system in use. |
CMNT_SZMAKE | [5] Manufacturer of the equipment used to create the image. |
CMNT_SZMODEL | [6] Model name and number of the equipment. |
CMNT_SZNAMEOFDOC | [7] Name of the document from which the image was scanned. |
CMNT_SZNAMEOFPAGE | [8] Page name from which the image was scanned. |
CMNT_SZSOFTWARE | [9] Name and version of the software package used to create the image. |
If you are using the nag version of LTKRN, this comment is fixed and cannot be changed. |
NOTE: To save a region inside a TIFF file, you must have an unlocked Document, Vector, or Medical Imaging license.
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