Edit File: TIFFSetField.3tiff.html
<!-- Creator : groff version 1.20.1 --> <!-- CreationDate: Thu May 6 13:48:46 2010 --> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta name="generator" content="groff -Thtml, see www.gnu.org"> <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> <meta name="Content-Style" content="text/css"> <style type="text/css"> p { margin-top: 0; margin-bottom: 0; vertical-align: top } pre { margin-top: 0; margin-bottom: 0; vertical-align: top } table { margin-top: 0; margin-bottom: 0; vertical-align: top } h1 { text-align: center } </style> <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> <h2>NAME <a name="NAME"></a> </h2> <p style="margin-left:11%; margin-top: 1em">TIFFSetField, TIFFVSetField − set the value(s) of a tag in a <small>TIFF</small> file open for writing</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>int TIFFSetField(TIFF *</b><i>tif</i><b>, ttag_t</b> <i>tag</i><b>,</b> <i>...</i><b>)</b></p> <p style="margin-left:11%; margin-top: 1em"><b>#include <stdarg.h></b></p> <p style="margin-left:11%; margin-top: 1em"><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> <h2>DESCRIPTION <a name="DESCRIPTION"></a> </h2> <p style="margin-left:11%; margin-top: 1em"><b><i>TIFFSetField</i></b> 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> <p style="margin-left:11%; margin-top: 1em"><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> <p style="margin-left:11%; margin-top: 1em">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> <p style="margin-left:11%; margin-top: 1em">Consult the <small>TIFF</small> specification for information on the meaning of each tag.</p> <table width="100%" border="0" rules="none" frame="void" cellspacing="0" cellpadding="0"> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p><i>Tag Name</i></p></td> <td width="11%"></td> <td width="29%"> <p><i>Count</i></p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p><i>Types</i></p></td> <td width="11%"> <p><i>Notes</i></p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_ARTIST</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>char*</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_BADFAXLINES</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint32</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_BITSPERSAMPLE</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16</p></td> <td width="11%"> <p>†</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_CLEANFAXDATA</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_COLORMAP</p></td> <td width="11%"></td> <td width="29%"> <p>3</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16*</p></td> <td width="11%"> <p>1<<BitsPerSample arrays</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_COMPRESSION</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16</p></td> <td width="11%"> <p>†</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_CONSECUTIVEBADFAXLINES</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint32</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_COPYRIGHT</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>char*</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_DATETIME</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>char*</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_DOCUMENTNAME</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>char*</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_DOTRANGE</p></td> <td width="11%"></td> <td width="29%"> <p>2</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_EXTRASAMPLES</p></td> <td width="11%"></td> <td width="29%"> <p>2</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16,uint16*</p></td> <td width="11%"> <p>† count & types array</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_FAXFILLFUNC</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>TIFFFaxFillFunc</p></td> <td width="11%"> <p>G3/G4 compression pseudo-tag</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_FAXMODE</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>int</p></td> <td width="11%"> <p>† G3/G4 compression pseudo-tag</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_FILLORDER</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16</p></td> <td width="11%"> <p>†</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_GROUP3OPTIONS</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint32</p></td> <td width="11%"> <p>†</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_GROUP4OPTIONS</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint32</p></td> <td width="11%"> <p>†</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_HALFTONEHINTS</p></td> <td width="11%"></td> <td width="29%"> <p>2</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_HOSTCOMPUTER</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>char*</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_ICCPROFILE</p></td> <td width="11%"></td> <td width="29%"> <p>2</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint32,void*</p></td> <td width="11%"> <p>count, profile data</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_IMAGEDEPTH</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint32</p></td> <td width="11%"> <p>†</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_IMAGEDESCRIPTION</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>char*</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_IMAGELENGTH</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint32</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_IMAGEWIDTH</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint32</p></td> <td width="11%"> <p>†</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_INKNAMES</p></td> <td width="11%"></td> <td width="29%"> <p>2</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16, char*</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_INKSET</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16</p></td> <td width="11%"> <p>†</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_JPEGCOLORMODE</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>int</p></td> <td width="11%"> <p>† JPEG pseudo-tag</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_JPEGQUALITY</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>int</p></td> <td width="11%"> <p>JPEG pseudo-tag</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_JPEGTABLES</p></td> <td width="11%"></td> <td width="29%"> <p>2</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint32*,void*</p></td> <td width="11%"> <p>† count & tables</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_JPEGTABLESMODE</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>int</p></td> <td width="11%"> <p>† JPEG pseudo-tag</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_MAKE</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>char*</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_MATTEING</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16</p></td> <td width="11%"> <p>†</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_MAXSAMPLEVALUE</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_MINSAMPLEVALUE</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_MODEL</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>char*</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_ORIENTATION</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_PAGENAME</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>char*</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_PAGENUMBER</p></td> <td width="11%"></td> <td width="29%"> <p>2</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_PHOTOMETRIC</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_PHOTOSHOP</p></td> <td width="11%"></td> <td width="29%"> <p>?</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint32,void*</p></td> <td width="11%"> <p>count, data</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_PLANARCONFIG</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16</p></td> <td width="11%"> <p>†</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_PREDICTOR</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16</p></td> <td width="11%"> <p>†</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_PRIMARYCHROMATICITIES</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>float*</p></td> <td width="11%"> <p>6-entry array</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_REFERENCEBLACKWHITE</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>float*</p></td> <td width="11%"> <p>† 6-entry array</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_RESOLUTIONUNIT</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_RICHTIFFIPTC</p></td> <td width="11%"></td> <td width="29%"> <p>2</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint32,void*</p></td> <td width="11%"> <p>count, data</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_ROWSPERSTRIP</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint32</p></td> <td width="11%"> <p>† must be > 0</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_SAMPLEFORMAT</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16</p></td> <td width="11%"> <p>†</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_SAMPLESPERPIXEL</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16</p></td> <td width="11%"> <p>† value must be <= 4</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_SMAXSAMPLEVALUE</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>double</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_SMINSAMPLEVALUE</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>double</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_SOFTWARE</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>char*</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_STONITS</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>double</p></td> <td width="11%"> <p>†</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_SUBFILETYPE</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint32</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_SUBIFD</p></td> <td width="11%"></td> <td width="29%"> <p>2</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16,uint32*</p></td> <td width="11%"> <p>count & offsets array</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_TARGETPRINTER</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>char*</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_THRESHHOLDING</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_TILEDEPTH</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint32</p></td> <td width="11%"> <p>†</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_TILELENGTH</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint32</p></td> <td width="11%"> <p>† must be a multiple of 8</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_TILEWIDTH</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint32</p></td> <td width="11%"> <p>† must be a multiple of 8</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_TRANSFERFUNCTION</p></td> <td width="11%"></td> <td width="29%"> <p>1 or 3‡ uint16*</p></td> <td width="11%"> <p>1<<BitsPerSample entry arrays</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_WHITEPOINT</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>float*</p></td> <td width="11%"> <p>2-entry array</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_XMLPACKET</p></td> <td width="11%"></td> <td width="29%"> <p>2</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint32,void*</p></td> <td width="11%"> <p>count, data</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_XPOSITION</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>float</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_XRESOLUTION</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>float</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_YCBCRCOEFFICIENTS</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>float*</p></td> <td width="11%"> <p>† 3-entry array</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_YCBCRPOSITIONING</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16</p></td> <td width="11%"> <p>†</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_YCBCRSAMPLING</p></td> <td width="11%"></td> <td width="29%"> <p>2</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>uint16</p></td> <td width="11%"> <p>†</p></td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_YPOSITION</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>float</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"> <p>TIFFTAG_YRESOLUTION</p></td> <td width="11%"></td> <td width="29%"> <p>1</p></td> <td width="11%"> </td></tr> <tr valign="top" align="left"> <td width="11%"></td> <td width="38%"></td> <td width="11%"></td> <td width="29%"> <p>float</p></td> <td width="11%"> </td></tr> </table> <p style="margin-left:11%;">† Tag may not have its values changed once data is written. <br> ‡ 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 "Embedding ICC Profiles in TIFF Files" (available at http://www.color.org) for an explanation.</p> <h2>RETURN VALUES <a name="RETURN VALUES"></a> </h2> <p style="margin-left:11%; margin-top: 1em">1 is returned if the operation was successful. Otherwise, 0 is returned if an error was detected.</p> <h2>DIAGNOSTICS <a name="DIAGNOSTICS"></a> </h2> <p style="margin-left:11%; margin-top: 1em">All error messages are directed to the <b>TIFFError</b>(3TIFF) routine.</p> <p style="margin-left:11%; margin-top: 1em"><b>%s: Cannot modify tag "%s" while writing</b>. Data has already been written to the file, so the specified tag’s value can not be changed. This restriction is applied to all tags that affect the format of written data.</p> <p style="margin-left:11%; margin-top: 1em"><b>%d: Bad value for "%s"</b>. An invalid value was supplied for the named tag.</p> <h2>SEE ALSO <a name="SEE ALSO"></a> </h2> <p style="margin-left:11%; margin-top: 1em"><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> <p style="margin-left:11%; margin-top: 1em">Libtiff library home page: <b>http://www.remotesensing.org/libtiff/</b></p> <hr> </body> </html>