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

       1988-2024, LibTIFF contributors