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<div class="subsubsection" id="Customizing-Toolkit-Behavior">
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Next: <a href="Hardware-vs_002e-Software-Rendering.html" accesskey="n" rel="next">Hardware vs. Software Rendering</a>, Up: <a href="Graphics-Toolkits.html" accesskey="u" rel="up">Graphics Toolkits</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
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<span id="Customizing-Toolkit-Behavior-1"></span><h4 class="subsubsection">15.4.8.1 Customizing Toolkit Behavior</h4>
<span id="index-toolkit-customization"></span>
<p>The specific behavior of the backend toolkit may be modified using the
following utility functions. Note: Not all functions apply to every
graphics toolkit.
</p>
<span id="XREFgnuplot_005fbinary"></span><dl class="def">
<dt id="index-gnuplot_005fbinary"><span class="category">: </span><span><em>[<var>prog</var>, <var>args</var>] =</em> <strong>gnuplot_binary</strong> <em>()</em><a href='#index-gnuplot_005fbinary' class='copiable-anchor'> ¶</a></span></dt>
<dt id="index-gnuplot_005fbinary-1"><span class="category">: </span><span><em>[<var>old_prog</var>, <var>old_args</var>] =</em> <strong>gnuplot_binary</strong> <em>(<var>new_prog</var>)</em><a href='#index-gnuplot_005fbinary-1' class='copiable-anchor'> ¶</a></span></dt>
<dt id="index-gnuplot_005fbinary-2"><span class="category">: </span><span><em>[<var>old_prog</var>, <var>old_args</var>] =</em> <strong>gnuplot_binary</strong> <em>(<var>new_prog</var>, <var>arg1</var>, …)</em><a href='#index-gnuplot_005fbinary-2' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>Query or set the name of the program invoked by the plot command when the
graphics toolkit is set to <code>"gnuplot"</code>.
</p>
<p>Additional arguments to pass to the external plotting program may also be
given. The default value is <code>"gnuplot"</code> with no additional arguments.
See <a href="Installation.html">Installing Octave</a>.
</p>
<p><strong>See also:</strong> <a href="Graphics-Toolkits.html#XREFgraphics_005ftoolkit">graphics_toolkit</a>.
</p></dd></dl>
<span id="index-GNUTERM"></span>
<p>In addition, the gnuplot program usually provides a number of different
interfaces, known as terminals. Octave normally chooses a default terminal,
but you can override this with the environment variable <code>GNUTERM</code>. This
variable may be set in the shell before starting Octave or from within Octave
before plotting for the first time. For example:
</p>
<div class="example">
<pre class="example">setenv ("GNUTERM", "wxt")
graphics_toolkit ("gnuplot")
plot (1:10)
</pre></div>
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