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<!-- Creator : groff version 1.18.1 -->
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<!-- CreationDate: Mon Mar 13 18:03:09 2006 -->
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<html>
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<head>
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<meta name="generator" content="groff -Thtml, see www.gnu.org">
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<meta name="Content-Style" content="text/css">
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<title>QUERY</title>
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</head>
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<body>
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<h1 align=center>QUERY</h1>
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<a href="#NAME">NAME</a><br>
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<a href="#SYNOPSIS">SYNOPSIS</a><br>
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<a href="#DESCRIPTION">DESCRIPTION</a><br>
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<a href="#DIAGNOSTICS">DIAGNOSTICS</a><br>
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<a href="#SEE ALSO">SEE ALSO</a><br>
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<hr>
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<a name="NAME"></a>
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<h2>NAME</h2>
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<table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="8%"></td>
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<td width="91%">
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<p>TIFFCurrentRow, TIFFCurrentStrip, TIFFCurrentTile,
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TIFFCurrentDirectory, TIFFLastDirectory, TIFFFileno,
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TIFFFileName, TIFFGetMode, TIFFIsTiled, TIFFIsByteSwapped,
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TIFFIsUpSampled, TIFFIsMSB2LSB, TIFFGetVersion − query
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routines</p>
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</td>
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</table>
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<a name="SYNOPSIS"></a>
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<h2>SYNOPSIS</h2>
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="8%"></td>
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<td width="91%">
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<p><b>#include <tiffio.h></b></p>
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<p><b>uint32 TIFFCurrentRow(TIFF*</b> <i>tif</i><b>)<br>
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tstrip_t TIFFCurrentStrip(TIFF*</b> <i>tif</i><b>)<br>
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ttile_t TIFFCurrentTile(TIFF*</b> <i>tif</i><b>)<br>
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tdir_t TIFFCurrentDirectory(TIFF*</b> <i>tif</i><b>)<br>
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int TIFFLastDirectory(TIFF*</b> <i>tif</i><b>)<br>
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int TIFFFileno(TIFF*</b> <i>tif</i><b>)<br>
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char* TIFFFileName(TIFF*</b> <i>tif</i><b>)<br>
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int TIFFGetMode(TIFF*</b> <i>tif</i><b>)<br>
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int TIFFIsTiled(TIFF*</b> <i>tif</i><b>)<br>
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int TIFFIsByteSwapped(TIFF*</b> <i>tif</i><b>)<br>
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int TIFFIsUpSampled(TIFF*</b> <i>tif</i><b>)<br>
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int TIFFIsMSB2LSB(TIFF*</b> <i>tif</i><b>)<br>
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const char* TIFFGetVersion(void)</b></p>
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</td>
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</table>
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<a name="DESCRIPTION"></a>
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<h2>DESCRIPTION</h2>
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<td width="8%"></td>
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<td width="91%">
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<p>The following routines return status information about an
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open <small>TIFF</small> file.</p>
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<p><i>TIFFCurrentDirectory</i> returns the index of the
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current directory (directories are numbered starting at 0).
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This number is suitable for use with the
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<i>TIFFSetDirectory</i> routine.</p>
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<p><i>TIFFLastDirectory</i> returns a non-zero value if the
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current directory is the last directory in the file;
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otherwise zero is returned.</p>
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<p><i>TIFFCurrentRow</i>, <i>TIFFCurrentStrip</i>, and
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<i>TIFFCurrentTile</i>, return the current row, strip, and
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tile, respectively, that is being read or written. These
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values are updated each time a read or write is done.</p>
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<p><i>TIFFFileno</i> returns the underlying file descriptor
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used to access the <small>TIFF</small> image in the
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filesystem.</p>
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<p><i>TIFFFileName</i> returns the pathname argument passed
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to <i>TIFFOpen</i> or <i>TIFFFdOpen</i>.</p>
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<p><i>TIFFGetMode</i> returns the mode with which the
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underlying file was opened. On <small>UNIX</small> systems,
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this is the value passed to the <i>open</i>(2) system
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call.</p>
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<p><i>TIFFIsTiled</i> returns a non-zero value if the image
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data has a tiled organization. Zero is returned if the image
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data is organized in strips.</p>
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<p><i>TIFFIsByteSwapped</i> returns a non-zero value if the
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image data was in a different byte-order than the host
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machine. Zero is returned if the TIFF file and local host
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byte-orders are the same. Note that TIFFReadTile(),
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TIFFReadStrip() and TIFFReadScanline() functions already
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normally perform byte swapping to local host order if
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needed.</p>
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<p><i>TIFFIsUpSampled</i> returns a non-zero value if image
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data returned through the read interface routines is being
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up-sampled. This can be useful to applications that want to
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calculate I/O buffer sizes to reflect this usage (though the
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usual strip and tile size routines already do this).</p>
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<p><i>TIFFIsMSB2LSB</i> returns a non-zero value if the
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image data is being returned with bit 0 as the most
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significant bit.</p>
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<p><i>TIFFGetVersion</i> returns an <small>ASCII</small>
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string that has a version stamp for the <small>TIFF</small>
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library software.</p>
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</td>
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</table>
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<a name="DIAGNOSTICS"></a>
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<h2>DIAGNOSTICS</h2>
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<table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="8%"></td>
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<td width="91%">
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<p>None.</p>
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</td>
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</table>
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<a name="SEE ALSO"></a>
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<h2>SEE ALSO</h2>
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<table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="8%"></td>
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<td width="91%">
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<p><i>libtiff</i>(3TIFF), <i>TIFFOpen</i>(3TIFF),
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<i>TIFFFdOpen</i>(3TIFF)</p>
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</td>
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</table>
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<hr>
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</body>
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</html>
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