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<!-- Creator : groff version 1.22.4 --> <!-- CreationDate: Sun Nov 2 19:00:00 2025 --> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta name="generator" content="groff -Thtml, see www.gnu.org"> <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> <meta name="Content-Style" content="text/css"> <style type="text/css"> p { margin-top: 0; margin-bottom: 0; vertical-align: top } pre { margin-top: 0; margin-bottom: 0; vertical-align: top } table { margin-top: 0; margin-bottom: 0; vertical-align: top } h1 { text-align: center } </style> <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> <h2>NAME <a name="NAME"></a> </h2> <p style="margin-left:11%; margin-top: 1em">TIFFCurrentRow, TIFFCurrentStrip, TIFFCurrentTile, TIFFCurrentDirectory, TIFFLastDirectory, TIFFFileno, TIFFFileName, TIFFGetMode, TIFFIsTiled, TIFFIsByteSwapped, TIFFIsUpSampled, TIFFIsMSB2LSB, TIFFGetVersion − query routines</p> <h2>SYNOPSIS <a name="SYNOPSIS"></a> </h2> <p style="margin-left:11%; margin-top: 1em"><b>#include <tiffio.h></b></p> <p style="margin-left:11%; margin-top: 1em"><b>uint32_t 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> <h2>DESCRIPTION <a name="DESCRIPTION"></a> </h2> <p style="margin-left:11%; margin-top: 1em">The following routines return status information about an open <small>TIFF</small> file.</p> <p style="margin-left:11%; margin-top: 1em"><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> <p style="margin-left:11%; margin-top: 1em"><i>TIFFLastDirectory</i> returns a non-zero value if the current directory is the last directory in the file; otherwise zero is returned.</p> <p style="margin-left:11%; margin-top: 1em"><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> <p style="margin-left:11%; margin-top: 1em"><i>TIFFFileno</i> returns the underlying file descriptor used to access the <small>TIFF</small> image in the filesystem.</p> <p style="margin-left:11%; margin-top: 1em"><i>TIFFFileName</i> returns the pathname argument passed to <i>TIFFOpen</i> or <i>TIFFFdOpen</i>.</p> <p style="margin-left:11%; margin-top: 1em"><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> <p style="margin-left:11%; margin-top: 1em"><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> <p style="margin-left:11%; margin-top: 1em"><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(), TIFFReadEncodedStrip() and TIFFReadScanline() functions already normally perform byte swapping to local host order if needed.</p> <p style="margin-left:11%; margin-top: 1em"><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> <p style="margin-left:11%; margin-top: 1em"><i>TIFFIsMSB2LSB</i> returns a non-zero value if the image data is being returned with bit 0 as the most significant bit.</p> <p style="margin-left:11%; margin-top: 1em"><i>TIFFGetVersion</i> returns an <small>ASCII</small> string that has a version stamp for the <small>TIFF</small> library software.</p> <h2>DIAGNOSTICS <a name="DIAGNOSTICS"></a> </h2> <p style="margin-left:11%; margin-top: 1em">None.</p> <h2>SEE ALSO <a name="SEE ALSO"></a> </h2> <p style="margin-left:11%; margin-top: 1em"><i>libtiff</i>(3TIFF), <i>TIFFOpen</i>(3TIFF), <i>TIFFFdOpen</i>(3TIFF)</p> <hr> </body> </html>