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<title>QUERY</title>
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<h1 align="center">QUERY</h1>
<a href="#NAME">NAME</a><br>
<a href="#SYNOPSIS">SYNOPSIS</a><br>
<a href="#DESCRIPTION">DESCRIPTION</a><br>
<a href="#DIAGNOSTICS">DIAGNOSTICS</a><br>
<a href="#SEE ALSO">SEE ALSO</a><br>
<hr>
<h2>NAME
<a name="NAME"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">TIFFCurrentRow,
TIFFCurrentStrip, TIFFCurrentTile, TIFFCurrentDirectory,
TIFFLastDirectory, TIFFFileno, TIFFFileName, TIFFGetMode,
TIFFIsTiled, TIFFIsByteSwapped, TIFFIsUpSampled,
TIFFIsMSB2LSB, TIFFGetVersion − query routines</p>
<h2>SYNOPSIS
<a name="SYNOPSIS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em"><b>#include
<tiffio.h></b></p>
<p style="margin-left:11%; margin-top: 1em"><b>uint32_t
TIFFCurrentRow(TIFF*</b> <i>tif</i><b>) <br>
tstrip_t TIFFCurrentStrip(TIFF*</b> <i>tif</i><b>) <br>
ttile_t TIFFCurrentTile(TIFF*</b> <i>tif</i><b>) <br>
tdir_t TIFFCurrentDirectory(TIFF*</b> <i>tif</i><b>) <br>
int TIFFLastDirectory(TIFF*</b> <i>tif</i><b>) <br>
int TIFFFileno(TIFF*</b> <i>tif</i><b>) <br>
char* TIFFFileName(TIFF*</b> <i>tif</i><b>) <br>
int TIFFGetMode(TIFF*</b> <i>tif</i><b>) <br>
int TIFFIsTiled(TIFF*</b> <i>tif</i><b>) <br>
int TIFFIsByteSwapped(TIFF*</b> <i>tif</i><b>) <br>
int TIFFIsUpSampled(TIFF*</b> <i>tif</i><b>) <br>
int TIFFIsMSB2LSB(TIFF*</b> <i>tif</i><b>) <br>
const char* TIFFGetVersion(void)</b></p>
<h2>DESCRIPTION
<a name="DESCRIPTION"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">The following
routines return status information about an open
<small>TIFF</small> file.</p>
<p style="margin-left:11%; margin-top: 1em"><i>TIFFCurrentDirectory</i>
returns the index of the current directory (directories are
numbered starting at 0). This number is suitable for use
with the <i>TIFFSetDirectory</i> routine.</p>
<p style="margin-left:11%; margin-top: 1em"><i>TIFFLastDirectory</i>
returns a non-zero value if the current directory is the
last directory in the file; otherwise zero is returned.</p>
<p style="margin-left:11%; margin-top: 1em"><i>TIFFCurrentRow</i>,
<i>TIFFCurrentStrip</i>, and <i>TIFFCurrentTile</i>, 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.</p>
<p style="margin-left:11%; margin-top: 1em"><i>TIFFFileno</i>
returns the underlying file descriptor used to access the
<small>TIFF</small> image in the filesystem.</p>
<p style="margin-left:11%; margin-top: 1em"><i>TIFFFileName</i>
returns the pathname argument passed to <i>TIFFOpen</i> or
<i>TIFFFdOpen</i>.</p>
<p style="margin-left:11%; margin-top: 1em"><i>TIFFGetMode</i>
returns the mode with which the underlying file was opened.
On <small>UNIX</small> systems, this is the value passed to
the <i>open</i>(2) system call.</p>
<p style="margin-left:11%; margin-top: 1em"><i>TIFFIsTiled</i>
returns a non-zero value if the image data has a tiled
organization. Zero is returned if the image data is
organized in strips.</p>
<p style="margin-left:11%; margin-top: 1em"><i>TIFFIsByteSwapped</i>
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(), TIFFReadEncodedStrip() and
TIFFReadScanline() functions already normally perform byte
swapping to local host order if needed.</p>
<p style="margin-left:11%; margin-top: 1em"><i>TIFFIsUpSampled</i>
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).</p>
<p style="margin-left:11%; margin-top: 1em"><i>TIFFIsMSB2LSB</i>
returns a non-zero value if the image data is being returned
with bit 0 as the most significant bit.</p>
<p style="margin-left:11%; margin-top: 1em"><i>TIFFGetVersion</i>
returns an <small>ASCII</small> string that has a version
stamp for the <small>TIFF</small> library software.</p>
<h2>DIAGNOSTICS
<a name="DIAGNOSTICS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">None.</p>
<h2>SEE ALSO
<a name="SEE ALSO"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em"><i>libtiff</i>(3TIFF),
<i>TIFFOpen</i>(3TIFF), <i>TIFFFdOpen</i>(3TIFF)</p>
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