TIFFSETTAGEXTENDER(3tiff)           LibTIFF          TIFFSETTAGEXTENDER(3tiff)

NAME
       TIFFSetTagExtender - register the merge function for user defined tags
       as an extender callback with libtiff

SYNOPSIS

          #include <tiffio.h>

       TIFFExtendProc TIFFSetTagExtender(TIFFExtendProc extender)

DESCRIPTION
       TIFFSetTagExtender() is used to register the merge function for user
       defined tags as an extender callback with libtiff.  A brief description
       can be found at Defining Application Tags.

       NOTE:
          TIFFSetTagExtender() cannot be used to extend custom directories
          (for example EXIF, GPS or other custom directories).  Only the TIFF
          directory can be extended with additional tags.

SEE ALSO
       libtiff (3tiff), Defining New TIFF Tags (3tiff), TIFFMergeFieldInfo
       (3tiff)

AUTHOR
       LibTIFF contributors

COPYRIGHT
       1988-2022, LibTIFF contributors

4.6                            September 8, 2023     TIFFSETTAGEXTENDER(3tiff)