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TIFFSetDirectory(3TIFF) TIFFSetDirectory(3TIFF)
NAME
TIFFSetDirectory, TIFFSetSubDirectory - set the current directory for
an open TIFF file
SYNOPSIS
#include <tiffio.h>
int TIFFSetDirectory(TIFF *tif, tdir_t dirnum)
int TIFFSetSubDirectory(TIFF *tif, uint64_t diroff)
DESCRIPTION
TIFFSetDirectory changes the current directory and reads its contents
with TIFFReadDirectory. The parameter dirnum specifies the
subfile/directory as an integer number, with the first directory
numbered zero.
TIFFSetSubDirectory acts like TIFFSetDirectory, except the directory is
specified as a file offset instead of an index; this is required for
accessing subdirectories linked through a SubIFD tag.
RETURN VALUES
On successful return 1 is returned. Otherwise, 0 is returned if dirnum
or diroff specifies a non-existent directory, or if an error was
encountered while reading the directory's contents.
DIAGNOSTICS
All error messages are directed to the TIFFError(3TIFF) routine.
%s: Error fetching directory count. An error was encountered while
reading the ``directory count'' field.
%s: Error fetching directory link. An error was encountered while
reading the ``link value'' that points to the next directory in a file.
SEE ALSO
TIFFCurrentDirectory(3TIFF), TIFFOpen(3TIFF), TIFFReadDirectory(3TIFF),
TIFFWriteDirectory(3TIFF), libtiff(3TIFF)
Libtiff library home page: http://www.simplesystems.org/libtiff/
libtiff October 15, 1995 TIFFSetDirectory(3TIFF)