179 lines
4.0 KiB
HTML
179 lines
4.0 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<HTML><HEAD><TITLE>Manpage of QUERY</TITLE>
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</HEAD><BODY BGCOLOR=WHITE><FONT FACE="helvetica, sans, arial">
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<H1>QUERY</H1>
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Section: Misc. Reference Manual Pages (3T)<BR>Updated: October 15, 1995<BR><A HREF="#index">Index</A>
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<BR><A HREF="index.html">Return to Main Contents</A>
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<HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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TIFFCurrentRow,
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TIFFCurrentStrip,
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TIFFCurrentTile,
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TIFFCurrentDirectory,
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TIFFLastDirectory,
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TIFFFileno,
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TIFFFileName,
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TIFFGetMode,
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TIFFIsTiled,
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TIFFIsByteSwapped,
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TIFFIsUpSampled,
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TIFFIsMSB2LSB
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- query routines
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<PRE>
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<B>#include <<A HREF="file:/usr/include/tiffio.h">tiffio.h</A>></B>
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<B>uint32 TIFFCurrentRow(TIFF* tif)</B>
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<B>tstrip_t TIFFCurrentStrip(TIFF* tif)</B>
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<B>ttile_t TIFFCurrentTile(TIFF* tif)</B>
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<B>tdir_t TIFFCurrentDirectory(TIFF* tif)</B>
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<B>int TIFFLastDirectory(TIFF* tif)</B>
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<B>int TIFFFileno(TIFF* tif)</B>
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<B>char* TIFFFileName(TIFF* tif)</B>
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<B>int TIFFGetMode(TIFF* tif)</B>
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<B>int TIFFIsTiled(TIFF* tif)</B>
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<B>int TIFFIsByteSwapped(TIFF* tif)</B>
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<B>int TIFFIsUpSampled(TIFF* tif)</B>
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<B>int TIFFIsMSB2LSB(TIFF* tif)</B>
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<B>const char* TIFFGetVersion(void)</B>
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</PRE>
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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The following routines return status information about an open
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<FONT SIZE="-1">TIFF</FONT>
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file.
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<P>
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<I>TIFFCurrentDirectory</I>
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returns the index of the current directory (directories
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are numbered starting at 0).
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This number is suitable for use with the
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<I>TIFFSetDirectory</I>
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routine.
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<P>
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<I>TIFFLastDirectory</I>
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returns a non-zero value if the current directory is the
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last directory in the file;
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otherwise zero is returned.
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<P>
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<I>TIFFCurrentRow</I>,
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<I>TIFFCurrentStrip</I>,
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and
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<I>TIFFCurrentTile</I>,
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return the current row, strip, and tile, respectively,
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that is being read or written.
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These values are updated each time a read or write is done.
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<P>
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<I>TIFFFileno</I>
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returns the underlying file descriptor used to access the
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<FONT SIZE="-1">TIFF</FONT>
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image in the filesystem.
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<P>
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<I>TIFFFileName</I>
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returns the pathname argument passed to
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<I>TIFFOpen</I>
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or
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<I>TIFFFdOpen</I>.
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<P>
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<I>TIFFGetMode</I>
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returns the mode with which the underlying file was opened.
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On
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<FONT SIZE="-1">UNIX</FONT>
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systems, this is the value passed to the
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<I><A HREF="open+2">open</A></I>(2)
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system call.
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<P>
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<I>TIFFIsTiled</I>
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returns a non-zero value if the image data has
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a tiled organization.
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Zero is returned if the image data is organized in strips.
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<P>
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<I>TIFFIsByteSwapped</I>
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returns a non-zero value if the image data was in a different
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byte-order than the host machine.
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Zero is returned if the image data and local host byte-orders
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are the same.
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Data samples that are more than 8 bits wide must be byte-swapped
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by the application.
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<P>
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<I>TIFFIsUpSampled</I>
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returns a non-zero value if image data returned through the
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read interface routines is being up-sampled.
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This can be useful to applications that want to calculate
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I/O buffer sizes to reflect this usage (though the usual
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strip and tile size routines already do this).
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<P>
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<I>TIFFIsMSB2LSB</I>
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returns a non-zero value if the image data is being returned with
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bit 0 as the most significant bit.
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<P>
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<I>TIFFGetVersion</I>
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returns an
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<FONT SIZE="-1">ASCII</FONT>
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string that has a version stamp for the
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<FONT SIZE="-1">TIFF</FONT>
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library software.
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<A NAME="lbAE"> </A>
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<H2>DIAGNOSTICS</H2>
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None.
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<A NAME="lbAF"> </A>
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<H2>SEE ALSO</H2>
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<I><A HREF="libtiff.3t.html">libtiff</A></I>(3T),
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<I><A HREF="TIFFOpen.3t.html">TIFFOpen</A></I>(3T),
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<I><A HREF="TIFFFdOpen.3t.html">TIFFFdOpen</A></I>(3T)
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT><A HREF="#lbAB">NAME</A><DD>
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<DT><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT><A HREF="#lbAE">DIAGNOSTICS</A><DD>
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<DT><A HREF="#lbAF">SEE ALSO</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="index.html">man2html</A>,
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using the manual pages.<BR>
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Time: 01:31:39 GMT, November 23, 1999
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