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, 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/