TIFFSetDirectory
Section: Misc. Reference Manual Pages (3TIFF)
Updated: October 15, 1995
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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, uint32 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.remotesensing.org/libtiff/