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1 | .\" |
2 | .\" Copyright (c) 1988-1997 Sam Leffler | |
3 | .\" Copyright (c) 1991-1997 Silicon Graphics, Inc. | |
4 | .\" | |
5 | .\" Permission to use, copy, modify, distribute, and sell this software and | |
6 | .\" its documentation for any purpose is hereby granted without fee, provided | |
7 | .\" that (i) the above copyright notices and this permission notice appear in | |
8 | .\" all copies of the software and related documentation, and (ii) the names of | |
9 | .\" Sam Leffler and Silicon Graphics may not be used in any advertising or | |
10 | .\" publicity relating to the software without the specific, prior written | |
11 | .\" permission of Sam Leffler and Silicon Graphics. | |
12 | .\" | |
13 | .\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, | |
14 | .\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY | |
15 | .\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. | |
16 | .\" | |
17 | .\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR | |
18 | .\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, | |
19 | .\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, | |
20 | .\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF | |
21 | .\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE | |
22 | .\" OF THIS SOFTWARE. | |
23 | .\" | |
24 | .if n .po 0 | |
25 | .TH QUERY 3TIFF "October 29, 2004" "libtiff" | |
26 | .SH NAME | |
27 | TIFFCurrentRow, | |
28 | TIFFCurrentStrip, | |
29 | TIFFCurrentTile, | |
30 | TIFFCurrentDirectory, | |
31 | TIFFLastDirectory, | |
32 | TIFFFileno, | |
33 | TIFFFileName, | |
34 | TIFFGetMode, | |
35 | TIFFIsTiled, | |
36 | TIFFIsByteSwapped, | |
37 | TIFFIsUpSampled, | |
38 | TIFFIsMSB2LSB, | |
39 | TIFFGetVersion | |
40 | \- query routines | |
41 | .SH SYNOPSIS | |
42 | .B "#include <tiffio.h>" | |
43 | .sp | |
44 | .BI "uint32 TIFFCurrentRow(TIFF* " tif ")" | |
45 | .br | |
46 | .BI "tstrip_t TIFFCurrentStrip(TIFF* " tif ")" | |
47 | .br | |
48 | .BI "ttile_t TIFFCurrentTile(TIFF* " tif ")" | |
49 | .br | |
50 | .BI "tdir_t TIFFCurrentDirectory(TIFF* " tif ")" | |
51 | .br | |
52 | .BI "int TIFFLastDirectory(TIFF* " tif ")" | |
53 | .br | |
54 | .BI "int TIFFFileno(TIFF* " tif ")" | |
55 | .br | |
56 | .BI "char* TIFFFileName(TIFF* " tif ")" | |
57 | .br | |
58 | .BI "int TIFFGetMode(TIFF* " tif ")" | |
59 | .br | |
60 | .BI "int TIFFIsTiled(TIFF* " tif ")" | |
61 | .br | |
62 | .BI "int TIFFIsByteSwapped(TIFF* " tif ")" | |
63 | .br | |
64 | .BI "int TIFFIsUpSampled(TIFF* " tif ")" | |
65 | .br | |
66 | .BI "int TIFFIsMSB2LSB(TIFF* " tif ")" | |
67 | .br | |
68 | .BI "const char* TIFFGetVersion(void)" | |
69 | .SH DESCRIPTION | |
70 | The following routines return status information about an open | |
71 | .SM TIFF | |
72 | file. | |
73 | .PP | |
74 | .IR TIFFCurrentDirectory | |
75 | returns the index of the current directory (directories are numbered starting | |
76 | at 0). This number is suitable for use with the | |
77 | .IR TIFFSetDirectory | |
78 | routine. | |
79 | .PP | |
80 | .IR TIFFLastDirectory | |
81 | returns a non-zero value if the current directory is the last directory in the | |
82 | file; otherwise zero is returned. | |
83 | .PP | |
84 | .IR TIFFCurrentRow , | |
85 | .IR TIFFCurrentStrip , | |
86 | and | |
87 | .IR TIFFCurrentTile , | |
88 | return the current row, strip, and tile, respectively, that is being read or | |
89 | written. These values are updated each time a read or write is done. | |
90 | .PP | |
91 | .IR TIFFFileno | |
92 | returns the underlying file descriptor used to access the | |
93 | .SM TIFF | |
94 | image in the filesystem. | |
95 | .PP | |
96 | .IR TIFFFileName | |
97 | returns the pathname argument passed to | |
98 | .IR TIFFOpen | |
99 | or | |
100 | .IR TIFFFdOpen . | |
101 | .PP | |
102 | .IR TIFFGetMode | |
103 | returns the mode with which the underlying file was opened. On | |
104 | .SM UNIX | |
105 | systems, this is the value passed to the | |
106 | .IR open (2) | |
107 | system call. | |
108 | .PP | |
109 | .IR TIFFIsTiled | |
110 | returns a non-zero value if the image data has a tiled organization. Zero is | |
111 | returned if the image data is organized in strips. | |
112 | .PP | |
113 | .IR TIFFIsByteSwapped | |
114 | returns a non-zero value if the image data was in a different byte-order than | |
115 | the host machine. Zero is returned if the TIFF file and local host byte-orders | |
116 | are the same. Note that TIFFReadTile(), TIFFReadStrip() and | |
117 | TIFFReadScanline() functions already normally perform byte swapping to local | |
118 | host order if needed. | |
119 | .PP | |
120 | .I TIFFIsUpSampled | |
121 | returns a non-zero value if image data returned through the read interface | |
122 | routines is being up-sampled. This can be useful to applications that want to | |
123 | calculate I/O buffer sizes to reflect this usage (though the usual strip and | |
124 | tile size routines already do this). | |
125 | .PP | |
126 | .I TIFFIsMSB2LSB | |
127 | returns a non-zero value if the image data is being returned with bit 0 as the | |
128 | most significant bit. | |
129 | .PP | |
130 | .IR TIFFGetVersion | |
131 | returns an | |
132 | .SM ASCII | |
133 | string that has a version stamp for the | |
134 | .SM TIFF | |
135 | library software. | |
136 | .SH DIAGNOSTICS | |
137 | None. | |
138 | .SH "SEE ALSO" | |
139 | .IR libtiff (3TIFF), | |
140 | .IR TIFFOpen (3TIFF), | |
141 | .IR TIFFFdOpen (3TIFF) |