TIFFSetDirectory(3t)

TIFFSetDirectory(3TMISC. REFERENCE MANUAL PAGETIFFSetDirectory(3T)

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 direc-
     tory, 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 encountered
     while  reading  the  ``link  value'' that points to the next
     directory in a file.

SEE ALSO

     libtiff(3T),     TIFFCurrentDirectory(3T),     TIFFOpen(3T),
     TIFFReadDirectory(3T), TIFFWriteDirectory(3T)

                  Last change: October 15, 1995                 1