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
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) 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),
TIFFReadDirectory(3T), TIFFWriteDirectory(3T)