109 lines
3.1 KiB
HTML
109 lines
3.1 KiB
HTML
<!-- Creator : groff version 1.21 -->
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<!-- CreationDate: Sun Jul 29 12:12:01 2012 -->
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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"http://www.w3.org/TR/html4/loose.dtd">
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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 http-equiv="Content-Type" content="text/html; charset=US-ASCII">
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<meta name="Content-Style" content="text/css">
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<style type="text/css">
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pre { margin-top: 0; margin-bottom: 0; vertical-align: top }
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table { margin-top: 0; margin-bottom: 0; vertical-align: top }
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h1 { text-align: center }
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</style>
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<title>TIFFFieldWriteCount</title>
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</head>
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<body>
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<h1 align="center">TIFFFieldWriteCount</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="#RETURN VALUES">RETURN VALUES</a><br>
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<a href="#SEE ALSO">SEE ALSO</a><br>
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<hr>
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<h2>NAME
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<a name="NAME"></a>
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</h2>
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<p style="margin-left:11%; margin-top: 1em">TIFFFieldWriteCount
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− Get number of values to be written to field</p>
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<h2>SYNOPSIS
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<a name="SYNOPSIS"></a>
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</h2>
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<p style="margin-left:11%; margin-top: 1em"><b>#include
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<tiffio.h></b></p>
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<p style="margin-left:11%; margin-top: 1em"><b>int
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TIFFFieldWriteCount(const TIFFField*</b>
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<i>fip</i><b>)</b></p>
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<h2>DESCRIPTION
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<a name="DESCRIPTION"></a>
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</h2>
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<p style="margin-left:11%; margin-top: 1em"><b>TIFFFieldWriteCount</b>
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returns the number of values to be written into the
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specified TIFF field; that is, the number of arguments that
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should be supplied to <b>TIFFSetField</b>. For most field
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types this is a small positive integer, typically 1 or 2,
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but there are some special values: <b><br>
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TIFF_VARIABLE</b> indicates that a variable number of values
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is possible; then, a <b>uint16</b> <i>count</i> argument and
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a pointer <i>data</i> argument must be supplied to
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<b>TIFFSetField</b>. <b><br>
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TIFF_VARIABLE2</b> is the same as <b>TIFF_VARIABLE</b>
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except that the <i>count</i> argument must have type
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<b>uint32</b>. (On most modern machines, this makes no
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practical difference, and the <i>count</i> argument can
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simply be an <b>int</b> in either case.) <b><br>
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TIFF_SPP</b> indicates that the number of arguments must be
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equal to the image’s number of samples per pixel.</p>
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<p style="margin-left:11%; margin-top: 1em"><i>fip</i> is a
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field information pointer previously returned by
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<b>TIFFFindField</b>, <b>TIFFFieldWithTag</b>, or
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<b>TIFFFieldWithName</b>.</p>
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<p style="margin-left:11%; margin-top: 1em">For most field
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types, <b>TIFFFieldWriteCount</b> returns the same value as
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<b>TIFFFieldReadCount</b>, but there are some
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exceptions.</p>
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<h2>RETURN VALUES
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<a name="RETURN VALUES"></a>
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</h2>
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<p style="margin-left:11%; margin-top: 1em"><b>TIFFFieldWriteCount</b>
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returns an integer.</p>
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<h2>SEE ALSO
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<a name="SEE ALSO"></a>
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</h2>
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<p style="margin-left:11%; margin-top: 1em"><b>libtiff</b>(3TIFF),</p>
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<p style="margin-left:11%; margin-top: 1em">Libtiff library
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home page: <b>http://www.simplesystems.org/libtiff/</b></p>
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<hr>
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</body>
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</html>
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