TIFFSETTAGEXTENDER(3tiff) LibTIFF TIFFSETTAGEXTENDER(3tiff)
TIFFSetTagExtender - register the merge function for user defined
tags as an extender callback with libtiff
#include <tiffio.h>
TIFFExtendProc TIFFSetTagExtender(TIFFExtendProc extender)
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.
libtiff (3tiff), Defining New TIFF Tags (3tiff), TIFFMergeFieldInfo
(3tiff)
LibTIFF contributors
1988-2025, LibTIFF contributors
4.7 March 7, 2026 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
1988-2025, LibTIFF contributors
4.7 March 7, 2026 TIFFSETTAGEXTENDER(3tiff)