tiffwritedirectory(3tiff) [sunos man page]
TIFFWriteDirectory(3tiff) Introduction to Library Functions TIFFWriteDirectory(3tiff) NAME
TIFFWriteDirectory - write the current directory in an open TIFF file SYNOPSIS
#include <tiffio.h> int TIFFWriteDirectory(TIFF* tif) DESCRIPTION
Write the contents of the current directory to the file and set up to create a new subfile in the same file. Applications only need to call TIFFWriteDirectory when writing multiple subfiles to a single TIFF file. TIFFWriteDirectory is automatically called by TIFFClose and TIFF- Flush to write a modified directory if the file is open for writing. EXTENDED DESCRIPTION
Diagnostics All error messages are directed to the TIFFError(3tiff) routine. Error post-encoding befoBeforeecwritingitthe contents of the current directory, any pending data is flushed. This message indicates that an error occurred while doing this. Error flushing data befoBeforeewritingrthe.contents of the current directory, any pending data is flushed. This message indicates that an error occurred while doing this. Cannot write directory, Therefwasanot enough space to allocate a temporary area for the directory that was to be written. Error writing directory Aowrite error occurred when writing the count of fields in the directory. Error writing directory Aowriteserror occurred when writing the directory fields. Error writing directory Aiwrite error occurred when writing the link to the next directory. Error writing data for fAewriteserror occurred when writing indirect data for the specified field. Error writing TIFF headeA.write error occurred when rewriting header at the front of the file. Error fetching directoryAcread.error occurred when fetching the directory count field for a previous directory. This can occur when setting up a link to the directory that is being written. Error fetching directoryAlread error occurred when fetching the directory link field for a previous directory. This can occur when setting up a link to the directory that is being written. RETURN VALUES
1 is returned when the contents are successfully written to the file. Otherwise, 0 is returned if an error was encountered when writing the directory contents. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWTiff | +-----------------------------+-----------------------------+ |Interface stability |External | +-----------------------------+-----------------------------+ SEE ALSO
libtiff(3), TIFFError(3tiff), TIFFOpen(3tiff), TIFFReadDirectory(3tiff), TIFFSetDirectory(3tiff) NOTES
This man page was originally written by Sam Leffler. Updated by Breda McColgan, Sun Microsystems Inc., 2004. SunOS 5.10 05 Apr 2004 TIFFWriteDirectory(3tiff)
Check Out this Related Man Page
TIFFWriteDirectory(3TIFF) TIFFWriteDirectory(3TIFF) NAME
TIFFWriteDirectory, TIFFRewriteDirectory, TIFFCheckpointDirectory - write the current directory in an open TIFF file SYNOPSIS
#include <tiffio.h> int TIFFWriteDirectory(TIFF *tif) int TIFFRewriteDirectory(TIFF *tif) int TIFFCheckpointDirectory(TIFF *tif) DESCRIPTION
TIFFWriteDirectory will write the contents of the current directory to the file and setup to create a new subfile in the same file. Appli- cations only need to call TIFFWriteDirectory when writing multiple subfiles to a single TIFF file. TIFFWriteDirectory is automatically called by TIFFClose and TIFFFlush to write a modified directory if the file is open for writing. The TIFFRewriteDirectory function operates similarly to TIFFWriteDirectory, but can be called with directories previously read or written that already have an established location in the file. It will rewrite the directory, but instead of place it at it's old location (as TIFFWriteDirectory would) it will place them at the end of the file, correcting the pointer from the preceeding directory or file header to point to it's new location. This is particularly important in cases where the size of the directory and pointed to data has grown, so it won't fit in the space available at the old location. The TIFFCheckpointDirectory writes the current state of the tiff directory into the file to make what is currently in the file readable. Unlike TIFFWriteDirectory, TIFFCheckpointDirectory does not free up the directory data structures in memory, so they can be updated (as strips/tiles are written) and written again. Reading such a partial file you will at worst get a tiff read error for the first strip/tile encountered that is incomplete, but you will at least get all the valid data in the file before that. When the file is complete, just use TIFFWriteDirectory as usual to finish it off cleanly. RETURN VALUES
1 is returned when the contents are successfully written to the file. Otherwise, 0 is returned if an error was encountered when writing the directory contents. DIAGNOSTICS
All error messages are directed to the TIFFError(3TIFF) routine. Error post-encoding before directory write. Before writing the contents of the current directory, any pending data are flushed. This mes- sage indicates that an error occurred while doing this. Error flushing data before directory write. Before writing the contents of the current directory, any pending data are flushed. This mes- sage indicates that an error occurred while doing this. Cannot write directory, out of space. There was not enough space to allocate a temporary area for the directory that was to be written. Error writing directory count. A write error occurred when writing the count of fields in the directory. Error writing directory contents. A write error occurred when writing the directory fields. Error writing directory link. A write error occurred when writing the link to the next directory. Error writing data for field "%s". A write error occurred when writing indirect data for the specified field. Error writing TIFF header. A write error occurred when re-writing header at the front of the file. Error fetching directory count. A read error occurred when fetching the directory count field for a previous directory. This can occur when setting up a link to the directory that is being written. Error fetching directory link. A read error occurred when fetching the directory link field for a previous directory. This can occur when setting up a link to the directory that is being written. SEE ALSO
TIFFOpen(3TIFF), TIFFError(3TIFF), TIFFReadDirectory(3TIFF), TIFFSetDirectory(3TIFF), libtiff(3TIFF) Libtiff library home page: http://www.remotesensing.org/libtiff/ libtiff September 26, 2001 TIFFWriteDirectory(3TIFF)