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<H1>TIFFReadRawTile</H1>
Section: Misc. Reference Manual Pages (3T)<BR>Updated: October 15, 1995<BR><A HREF="#index">Index</A>
<BR><A HREF="index.html">Return to Main Contents</A>
<HR>

<A NAME="lbAB">&nbsp;</A>
<H2>NAME</H2>

TIFFReadRawTile - return an undecoded tile of data from an open
<FONT SIZE="-1">TIFF</FONT>
file
<A NAME="lbAC">&nbsp;</A>
<H2>SYNOPSIS</H2>

<B>#include &lt;<A HREF="file:/usr/include/tiffio.h">tiffio.h</A>&gt;</B>

<BR>

<B>tsize_t TIFFReadRawTile(TIFF* tif, ttile_t tile, tdata_t buf, tsize_t size)</B>

<A NAME="lbAD">&nbsp;</A>
<H2>DESCRIPTION</H2>

Read the contents of the specified tile into the
(user supplied) data buffer.
Note that the value of
<I>tile</I>

is a ``raw tile number.''
That is, the caller must take into account whether or not the
data is organized in separate planes (<I>PlanarConfiguration</I>=2).

<I>TIFFComputeTile</I>

automatically does this when converting an (x,y,z,sample)
coordinate quadruple to a tile number.
To read a full tile of data the data buffer should typically be
at least as large as the value returned by
<I>TIFFTileSize</I>.

<A NAME="lbAE">&nbsp;</A>
<H2>RETURN VALUES</H2>

The actual number of bytes of data that were placed in
<I>buf</I>

is returned;
<I>TIFFReadEncodedTile</I>

returns -1 if an error was encountered.
<A NAME="lbAF">&nbsp;</A>
<H2>DIAGNOSTICS</H2>

All error messages are directed to the
<I><A HREF="TIFFError.3t.html">TIFFError</A></I>(3T)

routine.
<A NAME="lbAG">&nbsp;</A>
<H2>SEE ALSO</H2>

<I><A HREF="libtiff.3t.html">libtiff</A></I>(3T),

<I><A HREF="TIFFOpen.3t.html">TIFFOpen</A></I>(3T),

<I><A HREF="TIFFReadEncodedTile.3t.html">TIFFReadEncodedTile</A></I>(3T),

<I><A HREF="TIFFReadTile.3t.html">TIFFReadTile</A></I>(3T),

<I><A HREF="TIFFTileSize.3t.html">TIFFTileSize</A></I>(3T)


<HR>
<A NAME="index">&nbsp;</A><H2>Index</H2>
<DL>
<DT><A HREF="#lbAB">NAME</A><DD>
<DT><A HREF="#lbAC">SYNOPSIS</A><DD>
<DT><A HREF="#lbAD">DESCRIPTION</A><DD>
<DT><A HREF="#lbAE">RETURN VALUES</A><DD>
<DT><A HREF="#lbAF">DIAGNOSTICS</A><DD>
<DT><A HREF="#lbAG">SEE ALSO</A><DD>
</DL>
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