QUERY(3TIFF)                                                      QUERY(3TIFF)



NAME
       TIFFCurrentRow, TIFFCurrentStrip, TIFFCurrentTile,
       TIFFCurrentDirectory, TIFFLastDirectory, TIFFFileno, TIFFFileName,
       TIFFGetMode, TIFFIsTiled, TIFFIsByteSwapped, TIFFIsUpSampled,
       TIFFIsMSB2LSB, TIFFGetVersion - 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)

DESCRIPTION
       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 TIFFSetDirectory routine.

       TIFFLastDirectory returns a non-zero value if the current directory is
       the last directory in the file; otherwise zero is returned.

       TIFFCurrentRow, TIFFCurrentStrip, and TIFFCurrentTile, return the
       current row, strip, and tile, respectively, that is being read or
       written. These values are updated each time a read or write is done.

       TIFFFileno returns the underlying file descriptor used to access the
       TIFF image in the filesystem.

       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 was 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
       TIFFReadTile(), TIFFReadStrip() and TIFFReadScanline() functions
       already normally perform 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 significant bit.

       TIFFGetVersion returns an ASCII string that has a version stamp for the
       TIFF library software.

DIAGNOSTICS
       None.

SEE ALSO
       libtiff(3TIFF), TIFFOpen(3TIFF), TIFFFdOpen(3TIFF)



libtiff                        October 29, 2004                   QUERY(3TIFF)
