TIFFCUSTOMTAGLIST(3tiff)            LibTIFF           TIFFCUSTOMTAGLIST(3tiff)

NAME
       TIFFCustomTagList - returns information about the custom tag list

SYNOPSIS

          #include <tiffio.h>

       int TIFFGetTagListCount(TIFF *tif)

       uint32_t TIFFGetTagListEntry(TIFF *tif, int tag_index)

DESCRIPTION
       TIFFGetTagListCount() returns the number of entries in the custom tag
       list.

       TIFFGetTagListEntry() returns the tag number of the (n.th - 1) entry
       within the custom tag list.  If the tag_index is larger or equal to the
       number of entries in the tag list 0xFFFFFFFF (=(uint32_t(-1)) is
       returned.

NOTE
       The known tags to libtiff are define as `named' tags and a lot of them
       as custom tags. The custom tag definitions are handled in an internal
       custom tag list. This list can also be extended by adding tag
       definitions to that list, so that libtiff is aware of those tags.  See
       Defining Application Tags

DIAGNOSTICS
       none

SEE ALSO
       libtiff (3tiff), TIFFOpen  (3tiff), TIFFError (3tiff)

AUTHOR
       LibTIFF contributors

COPYRIGHT
       1988-2022, LibTIFF contributors

4.6                            September 8, 2023      TIFFCUSTOMTAGLIST(3tiff)