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<div class="refentry" title="getcfg">
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<a id="Indexgetcfg" class="indexterm"></a>
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<h2>
<span class="refentrytitle">getcfg</span>
</h2>
<p>getcfg —
Return Csound settings.
</p>
</div>
<div class="refsect1" title="Description">
<a id="idp25353280"></a>
<h2>Description</h2>
<p>
Return various configuration settings in Svalue as a string at init time.
</p>
</div>
<div class="refsect1" title="Syntax">
<a id="idp25353968"></a>
<h2>Syntax</h2>
<pre class="synopsis">Svalue <span class="command"><strong>getcfg</strong></span> iopt</pre>
</div>
<div class="refsect1" title="Initialization">
<a id="idp25389080"></a>
<h2>Initialization</h2>
<p>
<span class="emphasis"><em>iopt</em></span>
-- The parameter to be returned, can be one of:
</p>
<div class="itemizedlist">
<ul class="itemizedlist" type="disc">
<li class="listitem">
<p>1: the maximum length of string variables in characters; this is at least the value of the -+max_str_len command line option - 1</p>
</li>
<li class="listitem">
<p>2: the input sound file name (-i), or empty if there is no input file</p>
</li>
<li class="listitem">
<p>3: the output sound file name (-o), or empty if there is no output file</p>
</li>
<li class="listitem">
<p>4: return "1" if real time audio input or output is being used, and "0" otherwise</p>
</li>
<li class="listitem">
<p>5: return "1" if running in beat mode (-t command line option), and "0" otherwise</p>
</li>
<li class="listitem">
<p>6: the host operating system name</p>
</li>
<li class="listitem">
<p>7: return "1" if a callback function for the chnrecv and chnsend opcodes has been set, and "0" otherwise (which means these opcodes do nothing)</p>
</li>
</ul>
</div>
<p>
</p>
</div>
<div class="refsect1" title="Examples">
<a id="idp25393504"></a>
<h2>Examples</h2>
<p>
Here is an example of the getcfg opcode. It uses the file <a class="ulink" href="examples/getcfg.csd" target="_top"><em class="citetitle">getcfg.csd</em></a>.
</p>
<div class="example">
<a id="idp25394472"></a>
<p class="title">
<strong>Example 326. Example of the getcfg opcode.</strong>
</p>
<div class="example-contents">
<p>See the sections <a class="link" href="UsingRealTime.html" title="Real-Time Audio"><em class="citetitle">Real-time Audio</em></a> and <a class="link" href="CommandFlags.html" title="Csound command line"><em class="citetitle">Command Line Flags</em></a> for more information on using command line flags.</p>
<pre class="programlisting">
<span class="csdtag"><CsoundSynthesizer></span>
<span class="csdtag"><CsOptions></span>
<span class="comment">; Select audio/midi flags here according to platform</span>
-odac <span class="comment">;;;realtime audio out</span>
-iadc <span class="comment">;;;uncomment -iadc if realtime audio input is needed too</span>
<span class="csdtag"></CsOptions></span>
<span class="csdtag"><CsInstruments></span>
<span class="ohdr">sr</span> <span class="op">=</span> 44100
<span class="ohdr">ksmps</span> <span class="op">=</span> 32
<span class="ohdr">nchnls</span> <span class="op">=</span> 2
<span class="ohdr">0dbfs</span> <span class="op">=</span> 1
<span class="oblock">instr</span> 1
S1 <span class="opc">getcfg</span> 1 <span class="comment">; -+max_str_len </span>
S2 <span class="opc">getcfg</span> 2 <span class="comment">; -i </span>
S3 <span class="opc">getcfg</span> 3 <span class="comment">; -o </span>
S4 <span class="opc">getcfg</span> 4 <span class="comment">; RTaudio </span>
S5 <span class="opc">getcfg</span> 5 <span class="comment">; -t </span>
S6 <span class="opc">getcfg</span> 6 <span class="comment">; os system host </span>
S7 <span class="opc">getcfg</span> 7 <span class="comment">; callback </span>
<span class="opc">prints</span> "<span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span>"
<span class="opc">prints</span> "\nMax string len <span class="op">:</span> "
<span class="opc">prints</span> S1
<span class="opc">prints</span> "\nInput file name (<span class="op">-</span>i) <span class="op">:</span> "
<span class="opc">prints</span> S2
<span class="opc">prints</span> "\nOutput file name (<span class="op">-</span>o) <span class="op">:</span> "
<span class="opc">prints</span> S3
<span class="opc">prints</span> "\nRTaudio (<span class="op">-</span>odac) <span class="op">:</span> "
<span class="opc">prints</span> S4
<span class="opc">prints</span> "\nBeat <span class="opc">mode</span> (<span class="op">-</span>t)<span class="op">?</span> <span class="op">:</span> "
<span class="opc">prints</span> S5
<span class="opc">prints</span> "\nHost Op. Sys. <span class="op">:</span> "
<span class="opc">prints</span> S6
<span class="opc">prints</span> "\nCallback <span class="op">?</span> <span class="op">:</span> "
<span class="opc">prints</span> S7
<span class="opc">prints</span> "\n"
<span class="opc">prints</span> "<span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">-</span>\n"
<span class="oblock">endin</span>
<span class="csdtag"></CsInstruments></span>
<span class="csdtag"><CsScore></span>
<span class="stamnt">i</span> 1 0 0
<span class="stamnt">e</span>
<span class="csdtag"></CsScore></span>
<span class="csdtag"></CsoundSynthesizer></span>
</pre>
</div>
</div>
<p><br class="example-break" />
The output should include lines like these:
</p>
<pre class="screen">
------------------------------
Max string len : 255
Input file name (-i) : adc
Output file name (-o) : dac
RTaudio (-odac) : 1
Beat mode (-t)? : 0
Host Op. Sys. : Linux
Callback ? : 0
------------------------------
</pre>
<p>
</p>
</div>
<div class="refsect1" title="Credits">
<a id="idp25397352"></a>
<h2>Credits</h2>
<p>
</p>
<table border="0" summary="Simple list" class="simplelist">
<tr>
<td>Author: Istvan Varga</td>
</tr>
<tr>
<td>2006</td>
</tr>
</table>
<p>
</p>
<p>New in version 5.02</p>
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