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(3T) rou
tine.
%s: Error fetching directory count. An error was encoun
tered while reading the ``directory count'' field.
%s: Error fetching directory link. An error was encoun
tered while reading the ``link value'' that points to the
next directory in a file.
SEE ALSO
libtiff(3T), TIFFCurrentDirectory(3T), TIFFOpen(3T), TIFF
ReadDirectory(3T), TIFFWriteDirectory(3T)
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