TIFFquery.3tiff.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
<!-- Creator : groff version 1.18.1 -->
<!-- CreationDate: Sat Feb 24 18:37:16 2007 -->
<html>
<head>
<meta name="generator" content="groff -Thtml, see www.gnu.org">
<meta name="Content-Style" content="text/css">
<title>QUERY</title>
</head>
<body>
<h1 align=center>QUERY</h1>
<a href="#NAME">NAME</a><br>
<a href="#SYNOPSIS">SYNOPSIS</a><br>
<a href="#DESCRIPTION">DESCRIPTION</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>TIFFCurrentRow, TIFFCurrentStrip, TIFFCurrentTile,
TIFFCurrentDirectory, TIFFLastDirectory, TIFFFileno,
TIFFFileName, TIFFGetMode, TIFFIsTiled, TIFFIsByteSwapped,
TIFFIsUpSampled, TIFFIsMSB2LSB, TIFFGetVersion − query
routines</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 <tiffio.h></b></p>
<!-- INDENTATION -->
<p><b>uint32 TIFFCurrentRow(TIFF*</b> <i>tif</i><b>)<br>
tstrip_t TIFFCurrentStrip(TIFF*</b> <i>tif</i><b>)<br>
ttile_t TIFFCurrentTile(TIFF*</b> <i>tif</i><b>)<br>
tdir_t TIFFCurrentDirectory(TIFF*</b> <i>tif</i><b>)<br>
int TIFFLastDirectory(TIFF*</b> <i>tif</i><b>)<br>
int TIFFFileno(TIFF*</b> <i>tif</i><b>)<br>
char* TIFFFileName(TIFF*</b> <i>tif</i><b>)<br>
int TIFFGetMode(TIFF*</b> <i>tif</i><b>)<br>
int TIFFIsTiled(TIFF*</b> <i>tif</i><b>)<br>
int TIFFIsByteSwapped(TIFF*</b> <i>tif</i><b>)<br>
int TIFFIsUpSampled(TIFF*</b> <i>tif</i><b>)<br>
int TIFFIsMSB2LSB(TIFF*</b> <i>tif</i><b>)<br>
const char* TIFFGetVersion(void)</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>The following routines return status information about an
open <small>TIFF</small> file.</p>
<!-- INDENTATION -->
<p><i>TIFFCurrentDirectory</i> returns the index of the
current directory (directories are numbered starting at 0).
This number is suitable for use with the
<i>TIFFSetDirectory</i> routine.</p>
<!-- INDENTATION -->
<p><i>TIFFLastDirectory</i> returns a non-zero value if the
current directory is the last directory in the file;
otherwise zero is returned.</p>
<!-- INDENTATION -->
<p><i>TIFFCurrentRow</i>, <i>TIFFCurrentStrip</i>, and
<i>TIFFCurrentTile</i>, return the current row, strip, and
tile, respectively, that is being read or written. These
values are updated each time a read or write is done.</p>
<!-- INDENTATION -->
<p><i>TIFFFileno</i> returns the underlying file descriptor
used to access the <small>TIFF</small> image in the
filesystem.</p>
<!-- INDENTATION -->
<p><i>TIFFFileName</i> returns the pathname argument passed
to <i>TIFFOpen</i> or <i>TIFFFdOpen</i>.</p>
<!-- INDENTATION -->
<p><i>TIFFGetMode</i> returns the mode with which the
underlying file was opened. On <small>UNIX</small> systems,
this is the value passed to the <i>open</i>(2) system
call.</p>
<!-- INDENTATION -->
<p><i>TIFFIsTiled</i> returns a non-zero value if the image
data has a tiled organization. Zero is returned if the image
data is organized in strips.</p>
<!-- INDENTATION -->
<p><i>TIFFIsByteSwapped</i> returns a non-zero value if the
image data was in a different byte-order than the host
machine. Zero is returned if the TIFF file and local host
byte-orders are the same. Note that TIFFReadTile(),
TIFFReadStrip() and TIFFReadScanline() functions already
normally perform byte swapping to local host order if
needed.</p>
<!-- INDENTATION -->
<p><i>TIFFIsUpSampled</i> returns a non-zero value if image
data returned through the read interface routines is being
up-sampled. This can be useful to applications that want to
calculate I/O buffer sizes to reflect this usage (though the
usual strip and tile size routines already do this).</p>
<!-- INDENTATION -->
<p><i>TIFFIsMSB2LSB</i> returns a non-zero value if the
image data is being returned with bit 0 as the most
significant bit.</p>
<!-- INDENTATION -->
<p><i>TIFFGetVersion</i> returns an <small>ASCII</small>
string that has a version stamp for the <small>TIFF</small>
library software.</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>None.</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><i>libtiff</i>(3TIFF), <i>TIFFOpen</i>(3TIFF),
<i>TIFFFdOpen</i>(3TIFF)</p>
</td>
</table>
<hr>
</body>
</html>