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libtiff/html/man/TIFFSetField.3tiff.html
Andrey Kiselev 0dcb9ef111 libtiff 3.8.1 released.
2006-03-13 15:06:17 +00:00

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<!-- Creator : groff version 1.18.1 -->
<!-- CreationDate: Mon Mar 13 18:03:10 2006 -->
<html>
<head>
<meta name="generator" content="groff -Thtml, see www.gnu.org">
<meta name="Content-Style" content="text/css">
<title>TIFFSetField</title>
</head>
<body>
<h1 align=center>TIFFSetField</h1>
<a href="#NAME">NAME</a><br>
<a href="#SYNOPSIS">SYNOPSIS</a><br>
<a href="#DESCRIPTION">DESCRIPTION</a><br>
<a href="#RETURN VALUES">RETURN VALUES</a><br>
<a href="#DIAGNOSTICS">DIAGNOSTICS</a><br>
<a href="#SEE ALSO">SEE ALSO</a><br>
<hr>
<a name="NAME"></a>
<h2>NAME</h2>
<!-- INDENTATION -->
<table width="100%" border=0 rules="none" frame="void"
cols="2" cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="8%"></td>
<td width="91%">
<p>TIFFSetField, TIFFVSetField &minus; set the value(s) of a
tag in a <small>TIFF</small> file open for writing</p>
</td>
</table>
<a name="SYNOPSIS"></a>
<h2>SYNOPSIS</h2>
<!-- INDENTATION -->
<table width="100%" border=0 rules="none" frame="void"
cols="2" cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="8%"></td>
<td width="91%">
<p><b>#include &lt;tiffio.h&gt;</b></p>
<!-- INDENTATION -->
<p><b>int TIFFSetField(TIFF *</b><i>tif</i><b>, ttag_t</b>
<i>tag</i><b>,</b> <i>...</i><b>)</b></p>
<!-- INDENTATION -->
<p><b>#include &lt;stdarg.h&gt;</b></p>
<!-- INDENTATION -->
<p><b>int TIFFVSetField(TIFF *</b><i>tif</i><b>, ttag_t</b>
<i>tag</i><b>, va_list</b> <i>ap</i><b>)</b></p>
</td>
</table>
<a name="DESCRIPTION"></a>
<h2>DESCRIPTION</h2>
<!-- INDENTATION -->
<table width="100%" border=0 rules="none" frame="void"
cols="2" cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="8%"></td>
<td width="91%">
<p><i>TIFFSetField</i> sets the value of a field or
pseudo-tag in the current directory associated with the open
<small>TIFF</small> file <i>tif</i>. (A <i>pseudo-tag</i> is
a parameter that is used to control the operation of the
<small>TIFF</small> library but whose value is not read or
written to the underlying file.) To set the value of a field
the file must have been previously opened for writing with
<i>TIFFOpen</i>(3TIFF); pseudo-tags can be set whether the
file was opened for reading or writing. The field is
identified by <i>tag</i>, one of the values defined in the
include file <b>tiff.h</b> (see also the table below). The
actual value is specified using a variable argument list, as
prescribed by the <i>stdarg</i>(3) interface (or, on some
machines, the <i>varargs</i>(3) interface.)</p>
<!-- INDENTATION -->
<p><i>TIFFVSetField</i> is functionally equivalent to
<i>TIFFSetField</i> except that it takes a pointer to a
variable argument list. <i>TIFFVSetField</i> is useful for
writing routines that are layered on top of the
functionality provided by <i>TIFFSetField</i>.</p>
<!-- INDENTATION -->
<p>The tags understood by <i>libtiff</i>, the number of
parameter values, and the expected types for the parameter
values are shown below. The data types are: <i>char*</i> is
null-terminated string and corresponds to the
<small>ASCII</small> data type; <i>uint16</i> is an unsigned
16-bit value; <i>uint32</i> is an unsigned 32-bit value;
<i>uint16*</i> is an array of unsigned 16-bit values.
<i>void*</i> is an array of data values of unspecified
type.</p>
<!-- INDENTATION -->
<p>Consult the <small>TIFF</small> specification for
information on the meaning of each tag.</p></td>
</table>
<!-- TABS -->
<p><i>Tag Name Count Types Notes</i></p>
<!-- TABS -->
<table width="100%" border=0 rules="none" frame="void"
cols="5" cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_ARTIST</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>char*</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_BADFAXLINES</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint32</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_BITSPERSAMPLE</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint16</p>
</td>
<td width="16%">
<p>&dagger;</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_CLEANFAXDATA</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint16</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_COLORMAP</p>
</td>
<td width="8%">
<p>3</p>
</td>
<td width="24%">
<p>uint16*</p>
</td>
<td width="16%">
<p>1&lt;&lt;BitsPerSample arrays</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_COMPRESSION</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint16</p>
</td>
<td width="16%">
<p>&dagger;</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_CONSECUTIVEBADFAXLINES</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint32</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_COPYRIGHT</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>char*</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_DATETIME</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>char*</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_DOCUMENTNAME</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>char*</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_DOTRANGE</p>
</td>
<td width="8%">
<p>2</p>
</td>
<td width="24%">
<p>uint16</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_EXTRASAMPLES</p>
</td>
<td width="8%">
<p>2</p>
</td>
<td width="24%">
<p>uint16,uint16*</p>
</td>
<td width="16%">
<p>&dagger; count &amp; types array</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_FAXFILLFUNC</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>TIFFFaxFillFunc</p>
</td>
<td width="16%">
<p>G3/G4 compression pseudo-tag</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_FAXMODE</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>int</p>
</td>
<td width="16%">
<p>&dagger; G3/G4 compression pseudo-tag</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_FILLORDER</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint16</p>
</td>
<td width="16%">
<p>&dagger;</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_GROUP3OPTIONS</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint32</p>
</td>
<td width="16%">
<p>&dagger;</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_GROUP4OPTIONS</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint32</p>
</td>
<td width="16%">
<p>&dagger;</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_HALFTONEHINTS</p>
</td>
<td width="8%">
<p>2</p>
</td>
<td width="24%">
<p>uint16</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_HOSTCOMPUTER</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>char*</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_ICCPROFILE</p>
</td>
<td width="8%">
<p>2</p>
</td>
<td width="24%">
<p>uint32,void*</p>
</td>
<td width="16%">
<p>count, profile data</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_IMAGEDEPTH</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint32</p>
</td>
<td width="16%">
<p>&dagger;</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_IMAGEDESCRIPTION</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>char*</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_IMAGELENGTH</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint32</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_IMAGEWIDTH</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint32</p>
</td>
<td width="16%">
<p>&dagger;</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_INKNAMES</p>
</td>
<td width="8%">
<p>2</p>
</td>
<td width="24%">
<p>uint16, char*</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_INKSET</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint16</p>
</td>
<td width="16%">
<p>&dagger;</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_JPEGCOLORMODE</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>int</p>
</td>
<td width="16%">
<p>&dagger; JPEG pseudo-tag</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_JPEGQUALITY</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>int</p>
</td>
<td width="16%">
<p>JPEG pseudo-tag</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_JPEGTABLES</p>
</td>
<td width="8%">
<p>2</p>
</td>
<td width="24%">
<p>uint32*,void*</p>
</td>
<td width="16%">
<p>&dagger; count &amp; tables</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_JPEGTABLESMODE</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>int</p>
</td>
<td width="16%">
<p>&dagger; JPEG pseudo-tag</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_MAKE</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>char*</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_MATTEING</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint16</p>
</td>
<td width="16%">
<p>&dagger;</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_MAXSAMPLEVALUE</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint16</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_MINSAMPLEVALUE</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint16</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_MODEL</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>char*</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_ORIENTATION</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint16</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_PAGENAME</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>char*</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_PAGENUMBER</p>
</td>
<td width="8%">
<p>2</p>
</td>
<td width="24%">
<p>uint16</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_PHOTOMETRIC</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint16</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_PHOTOSHOP</p>
</td>
<td width="8%">
<p>?</p>
</td>
<td width="24%">
<p>uint32,void*</p>
</td>
<td width="16%">
<p>count, data</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_PLANARCONFIG</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint16</p>
</td>
<td width="16%">
<p>&dagger;</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_PREDICTOR</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint16</p>
</td>
<td width="16%">
<p>&dagger;</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_PRIMARYCHROMATICITIES</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>float*</p>
</td>
<td width="16%">
<p>6-entry array</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_REFERENCEBLACKWHITE</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>float*</p>
</td>
<td width="16%">
<p>&dagger; 2*SamplesPerPixel array</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_RESOLUTIONUNIT</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint16</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_RICHTIFFIPTC</p>
</td>
<td width="8%">
<p>2</p>
</td>
<td width="24%">
<p>uint32,void*</p>
</td>
<td width="16%">
<p>count, data</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_ROWSPERSTRIP</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint32</p>
</td>
<td width="16%">
<p>&dagger; must be &gt; 0</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_SAMPLEFORMAT</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint16</p>
</td>
<td width="16%">
<p>&dagger;</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_SAMPLESPERPIXEL</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint16</p>
</td>
<td width="16%">
<p>&dagger; value must be &lt;= 4</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_SMAXSAMPLEVALUE</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>double</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_SMINSAMPLEVALUE</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>double</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_SOFTWARE</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>char*</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_STONITS</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>double</p>
</td>
<td width="16%">
<p>&dagger;</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_SUBFILETYPE</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint32</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_SUBIFD</p>
</td>
<td width="8%">
<p>2</p>
</td>
<td width="24%">
<p>uint16,uint32*</p>
</td>
<td width="16%">
<p>count &amp; offsets array</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_TARGETPRINTER</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>char*</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_THRESHHOLDING</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint16</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_TILEDEPTH</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint32</p>
</td>
<td width="16%">
<p>&dagger;</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_TILELENGTH</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint32</p>
</td>
<td width="16%">
<p>&dagger; must be a multiple of 8</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_TILEWIDTH</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint32</p>
</td>
<td width="16%">
<p>&dagger; must be a multiple of 8</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_TRANSFERFUNCTION</p>
</td>
<td width="8%">
<p>1 or 3&Dagger; uint16*</p>
</td>
<td width="24%"></td>
<td width="16%">
<p>1&lt;&lt;BitsPerSample entry arrays</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_WHITEPOINT</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>float*</p>
</td>
<td width="16%">
<p>2-entry array</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_XMLPACKET</p>
</td>
<td width="8%">
<p>2</p>
</td>
<td width="24%">
<p>uint32,void*</p>
</td>
<td width="16%">
<p>count, data</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_XPOSITION</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>float</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_XRESOLUTION</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>float</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_YCBCRCOEFFICIENTS</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>float*</p>
</td>
<td width="16%">
<p>&dagger; 3-entry array</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_YCBCRPOSITIONING</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>uint16</p>
</td>
<td width="16%">
<p>&dagger;</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_YCBCRSAMPLING</p>
</td>
<td width="8%">
<p>2</p>
</td>
<td width="24%">
<p>uint16</p>
</td>
<td width="16%">
<p>&dagger;</p>
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_YPOSITION</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>float</p>
</td>
<td width="16%">
</td>
<tr valign="top" align="left">
<td width="8%"></td>
<td width="41%">
<p>TIFFTAG_YRESOLUTION</p>
</td>
<td width="8%">
<p>1</p>
</td>
<td width="24%">
<p>float</p>
</td>
<td width="16%">
</td>
</table>
<!-- INDENTATION -->
<table width="100%" border=0 rules="none" frame="void"
cols="2" cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="8%"></td>
<td width="91%">
<p>&dagger; Tag may not have its values changed once data is
written.<br>
&Dagger; If <i>SamplesPerPixel</i> is one, then a single
array is passed; otherwise three arrays should be
passed.<br>
* The contents of this field are quite complex. See <b>The
ICC Profile Format Specification</b>, Annex B.3
&quot;Embedding ICC Profiles in TIFF Files&quot; (available
at http://www.color.org) for an explanation.</p>
</td>
</table>
<a name="RETURN VALUES"></a>
<h2>RETURN VALUES</h2>
<!-- INDENTATION -->
<table width="100%" border=0 rules="none" frame="void"
cols="2" cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="8%"></td>
<td width="91%">
<p>1 is returned if the operation was successful. Otherwise,
0 is returned if an error was detected.</p>
</td>
</table>
<a name="DIAGNOSTICS"></a>
<h2>DIAGNOSTICS</h2>
<!-- INDENTATION -->
<table width="100%" border=0 rules="none" frame="void"
cols="2" cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="8%"></td>
<td width="91%">
<p>All error messages are directed to the
<b>TIFFError</b>(3TIFF) routine.</p>
<!-- INDENTATION -->
<p><b>%s: Cannot modify tag &quot;%s&quot; while
writing</b>. Data has already been written to the file, so
the specified tag&rsquo;s value can not be changed. This
restriction is applied to all tags that affect the format of
written data.</p>
<!-- INDENTATION -->
<p><b>%d: Bad value for &quot;%s&quot;</b>. An invalid value
was supplied for the named tag.</p>
</td>
</table>
<a name="SEE ALSO"></a>
<h2>SEE ALSO</h2>
<!-- INDENTATION -->
<table width="100%" border=0 rules="none" frame="void"
cols="2" cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="8%"></td>
<td width="91%">
<p><b>TIFFOpen</b>(3TIFF), <b>TIFFGetField</b>(3TIFF),
<b>TIFFSetDirectory</b>(3TIFF),
<b>TIFFWriteDirectory</b>(3TIFF),
<b>TIFFReadDirectory</b>(3TIFF), <b>libtiff</b>(3TIFF)</p>
<!-- INDENTATION -->
<p>Libtiff library home page:
<b>http://www.remotesensing.org/libtiff/</b></p>
</td>
</table>
<hr>
</body>
</html>
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