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TIFFSetDirectory, TIFFSetSubDirectory - set
the current directory for an open TIFF
file
#include <tiffio.h>
int TIFFSetDirectory(TIFF* tif, tdir_t dirnum)
int TIFFSetSubDirectory(TIFF* tif, uint32 diroff)
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.
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.
All error
messages are directed to the TIFFError(3)
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.
libtiff(3)
,
TIFFCurrentDirectory(3)
, TIFFOpen(3)
, TIFFReadDirectory(3)
, TIFFWriteDirectory(3)
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