TIFFquery(3tiff)TIFFquery(3tiff)NAME
TIFFquery, TIFFCurrentDirectory, TIFFCurrentRow, TIFFCurrentStrip,
TIFFCurrentTile, TIFFFileName, TIFFFileno, TIFFGetMode, TIFFGetVersion,
TIFFIsByteSwapped, TIFFIsMSB2LSB, TIFFIsTiled, TIFFIsUpSampled,
TIFFLastDirectory - query routines
SYNOPSIS
#include <tiffio.h>
uint32 TIFFCurrentRow(TIFF* tif)
tstrip_t TIFFCurrentStrip(TIFF* tif)
ttile_t TIFFCurrentTile(TIFF* tif)
tdir_t TIFFCurrentDirectory(TIFF* tif)
int TIFFLastDirectory(TIFF* tif)
int TIFFFileno(TIFF* tif)
char* TIFFFileName(TIFF* tif)
int TIFFGetMode(TIFF* tif)
int TIFFIsTiled(TIFF* tif)
int TIFFIsByteSwapped(TIFF* tif)
int TIFFIsUpSampled(TIFF* tif)
int TIFFIsMSB2LSB(TIFF* tif)
const char* TIFFGetVersion(void)
The following routines return status information about an open TIFF
file.
TIFFCurrentDirectory Returns the index of the current directory.
Directories are numbered starting at 0. This
number is suitable for use with the TIFFSetDi‐
rectory routine.
TIFFLastDirectory Returns a non-zero value if the current direc‐
tory is the last directory in the file. Other‐
wise, zero is returned.
TIFFCurrentRow, TIFFCurrReturnsp,theFFcurrentTirow, strip, and tile,
respectively, that is being read or written.
These values are updated each time a read or
write is performed.
TIFFFileno Returns the underlying file descriptor used to
access the TIFF image in the file system.
TIFFFileName Returns the pathname argument passed to
TIFFOpen or TIFFFdOpen.
TIFFGetMode Returns the mode with which the underlying file
was opened. On UNIX systems, this is the value
passed to the open(2) system call.
TIFFIsTiled Returns a non-zero value if the image data has
a tiled organization. Zero is returned if the
image data is organized in strips.
TIFFIsByteSwapped Returns a non-zero value if the image data is
in a different byte-order than the host
machine. Zero is returned if the TIFF file and
local host byte-orders are the same. Note that
the TIFFReadTile(), TIFFReadStrip() and TIFF‐
ReadScanline() functions already normally per‐
form byte swapping to local host order if
needed.
TIFFIsUpSampled Returns a non-zero value if image data returned
through the read interface routines is being
up-sampled. This can be useful to applications
that want to calculate I/O buffer sizes to
reflect this usage, though the usual strip and
tile size routines already do this.
TIFFIsMSB2LSB Returns a non-zero value if the image data is
being returned with bit 0 as the most signifi‐
cant bit.
TIFFGetVersion Returns an ASCII string that has a version
stamp for the TIFF library software.
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Availability │image/library/libtiff │
├─────────────────────────────┼─────────────────────────────┤
│Interface stability │Uncommitted │
└─────────────────────────────┴─────────────────────────────┘
libtiff(3), TIFFOpen(3tiff), TIFFFdOpen(3tiff)
This man page was originally written by Sam Leffler. Updated by Breda
McColgan, Sun Microsystems Inc., 2004.
01 Apr 2004 TIFFquery(3tiff)
