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16 <title>TIFFFieldReadCount</title>
21 <h1 align="center">TIFFFieldReadCount</h1>
23 <a href="#NAME">NAME</a><br>
24 <a href="#SYNOPSIS">SYNOPSIS</a><br>
25 <a href="#DESCRIPTION">DESCRIPTION</a><br>
26 <a href="#RETURN VALUES">RETURN VALUES</a><br>
27 <a href="#SEE ALSO">SEE ALSO</a><br>
38 <p style="margin-left:11%; margin-top: 1em">TIFFFieldReadCount
39 − Get number of values to be read from field</p>
42 <a name="SYNOPSIS"></a>
46 <p style="margin-left:11%; margin-top: 1em"><b>#include
47 <tiffio.h></b></p>
49 <p style="margin-left:11%; margin-top: 1em"><b>int
50 TIFFFieldReadCount(const TIFFField*</b>
51 <i>fip</i><b>)</b></p>
54 <a name="DESCRIPTION"></a>
59 <p style="margin-left:11%; margin-top: 1em"><b>TIFFFieldReadCount</b>
60 returns the number of values available to be read from the
61 specified TIFF field; that is, the number of arguments that
62 should be supplied to <b>TIFFGetField</b>. For most field
63 types this is a small positive integer, typically 1 or 2,
64 but there are some special values: <b><br>
65 TIFF_VARIABLE</b> indicates that a variable number of values
66 is possible; then, a <b>uint16</b> <i>count</i> argument and
67 a pointer <i>data</i> argument must be supplied to
68 <b>TIFFGetField</b>. <b><br>
69 TIFF_VARIABLE2</b> is the same as <b>TIFF_VARIABLE</b>
70 except that the <i>count</i> argument must have type
71 <b>uint32</b>. <b><br>
72 TIFF_SPP</b> indicates that the number of arguments is equal
73 to the image’s number of samples per pixel.</p>
75 <p style="margin-left:11%; margin-top: 1em"><i>fip</i> is a
76 field information pointer previously returned by
77 <b>TIFFFindField</b>, <b>TIFFFieldWithTag</b>, or
78 <b>TIFFFieldWithName</b>.</p>
81 <a name="RETURN VALUES"></a>
86 <p style="margin-left:11%; margin-top: 1em"><b>TIFFFieldReadCount</b>
87 returns an integer.</p>
90 <a name="SEE ALSO"></a>
95 <p style="margin-left:11%; margin-top: 1em"><b>libtiff</b>(3TIFF),</p>
97 <p style="margin-left:11%; margin-top: 1em">Libtiff library
98 home page: <b>http://www.remotesensing.org/libtiff/</b></p>