TIFFSetDirectory

TIFFSetDirectory(3T)					 TIFFSetDirectory(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 sub-
       file/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 dir-
       num 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) 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
       libtiff(3T),  TIFFCurrentDirectory(3T),	TIFFOpen(3T),  TIFFReadDirec-
       tory(3T), TIFFWriteDirectory(3T)



			       October 15, 1995		 TIFFSetDirectory(3T)