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<h2>
<span class="refentrytitle">schedkwhennamed</span>
</h2>
<p>schedkwhennamed —
Similar to schedkwhen but uses a named instrument at init-time.
</p>
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<div class="refsect1" title="Description">
<a id="idp41525808"></a>
<h2>Description</h2>
<p>
Similar to <a class="link" href="schedkwhen.html" title="schedkwhen"><em class="citetitle">schedkwhen</em></a> but uses a named instrument at init-time.
</p>
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<div class="refsect1" title="Syntax">
<a id="idp41526944"></a>
<h2>Syntax</h2>
<pre class="synopsis"><span class="command"><strong>schedkwhennamed</strong></span> ktrigger, kmintim, kmaxnum, "name", kwhen, kdur \
[, ip4] [, ip5] [...]</pre>
</div>
<div class="refsect1" title="Initialization">
<a id="idp41588272"></a>
<h2>Initialization</h2>
<p>
<span class="emphasis"><em>ip4, ip5, ...</em></span> -- Equivalent to p4, p5, etc., in a score <a class="link" href="i.html" title="i Statement (Instrument or Note Statement)"><em class="citetitle">i statement</em></a>
</p>
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<div class="refsect1" title="Performance">
<a id="idp41589568"></a>
<h2>Performance</h2>
<p>
<span class="emphasis"><em>ktrigger</em></span> -- triggers a new score event. If <span class="emphasis"><em>ktrigger</em></span> is 0, no new event is triggered.
</p>
<p>
<span class="emphasis"><em>kmintim</em></span> -- minimum time between generated events, in seconds. If <span class="emphasis"><em>kmintim</em></span> is less than or equal to 0, no time limit exists.
</p>
<p>
<span class="emphasis"><em>kmaxnum</em></span> -- maximum number of simultaneous instances of named instrument allowed. If the number of existant instances of the named instrument is greater than or equal to <span class="emphasis"><em>kmaxnum</em></span>, no new event is generated. If <span class="emphasis"><em>kmaxnum</em></span> is less than or equal to 0, it is not used to limit event generation.
</p>
<p>
<span class="emphasis"><em>"name"</em></span> -- the named instrument's name.
</p>
<p>
<span class="emphasis"><em>kwhen</em></span> -- start time of the new event. Equivalent to p2 in a score <a class="link" href="i.html" title="i Statement (Instrument or Note Statement)"><em class="citetitle">i statement</em></a>. Measured from the time of the triggering event. <span class="emphasis"><em>kwhen</em></span> must be greater than or equal to 0. If <span class="emphasis"><em>kwhen</em></span> greater than 0, the instrument will not be initialized until the actual time when it should start performing.
</p>
<p>
<span class="emphasis"><em>kdur</em></span> -- duration of event. Equivalent to p3 in a score <a class="link" href="i.html" title="i Statement (Instrument or Note Statement)"><em class="citetitle">i statement</em></a>. If <span class="emphasis"><em>kdur</em></span> is 0, the instrument will only do an initialization pass, with no performance. If <span class="emphasis"><em>kdur</em></span> is negative, a held note is initiated. (See <a class="link" href="ihold.html" title="ihold"><em class="citetitle">ihold</em></a> and <a class="link" href="i.html" title="i Statement (Instrument or Note Statement)"><em class="citetitle">i statement</em></a>.)
</p>
<div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;">
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<td rowspan="2" align="center" valign="top" width="25">
<img alt="[Note]" src="images/note.png" />
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<th align="left">Note</th>
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<td align="left" valign="top">
<p> While waiting for events to be triggered by <span class="emphasis"><em>schedkwhennamed</em></span>, the performance must be kept going, or Csound may quit if no score events are expected. To guarantee continued performance, an <a class="link" href="f.html" title="f Statement (or Function Table Statement)"><em class="citetitle">f0 statement</em></a> may be used in the score.</p>
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<th align="left">Note</th>
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<td align="left" valign="top">
<p> Note that the <span class="emphasis"><em>schedkwhennamed</em></span> opcode can't accept string p-fields. If you need to pass strings when instantiating an instrument, use the <a class="link" href="scoreline.html" title="scoreline"><em class="citetitle">scoreline</em></a> or <a class="link" href="scoreline_i.html" title="scoreline_i"><em class="citetitle">scoreline_i</em></a> opcode.</p>
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<div class="refsect1" title="Examples">
<a id="idp41599888"></a>
<h2>Examples</h2>
<p>
Here is an example of the schedkwhennamed opcode. It uses the file <a class="ulink" href="examples/schedkwhennamed.csd" target="_top"><em class="citetitle">schedkwhennamed.csd</em></a>.
</p>
<div class="example">
<a id="idp41600888"></a>
<p class="title">
<strong>Example 743. Example of the schedkwhennamed 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>
<span class="comment">; Audio out Audio in No messages</span>
-odac -iadc -d
<span class="comment">; For Non-realtime ouput leave only the line below:</span>
<span class="comment">; -o schedkwhennamed.wav -W ;;; for file output any platform</span>
<span class="csdtag"></CsOptions></span>
<span class="csdtag"><CsInstruments></span>
<span class="ohdr">sr</span> <span class="op">=</span> 48000
<span class="ohdr">ksmps</span> <span class="op">=</span> 16
<span class="ohdr">nchnls</span> <span class="op">=</span> 2
<span class="ohdr">0dbfs</span> <span class="op">=</span> 1
<span class="comment">; Example by Jonathan Murphy 2007</span>
gSinstr2 <span class="op">=</span> "printer"
<span class="oblock">instr</span> 1
ktrig <span class="opc">metro</span> 1
<span class="octrl">if</span> (ktrig <span class="op">==</span> 1) then
<span class="comment">;Call instrument "printer" once per second</span>
<span class="opc">schedkwhennamed</span> ktrig, 0, 1, gSinstr2, 0, 1
<span class="octrl">endif</span>
<span class="oblock">endin</span>
<span class="oblock">instr</span> printer
ktime <span class="opc">timeinsts</span>
<span class="opc">printk2</span> ktime
<span class="oblock">endin</span>
<span class="csdtag"></CsInstruments></span>
<span class="csdtag"><CsScore></span>
<span class="stamnt">i</span>1 0 10
<span class="stamnt">e</span>
<span class="csdtag"></CsScore></span>
<span class="csdtag"></CsoundSynthesizer></span>
</pre>
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<p><br class="example-break" />
</p>
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<div class="refsect1" title="See also">
<a id="idp41603184"></a>
<h2>See also</h2>
<p><a class="link" href="event.html" title="event"><em class="citetitle">event</em></a>,
<a class="link" href="event_i.html" title="event_i"><em class="citetitle">event_i</em></a>,
<a class="link" href="schedule.html" title="schedule"><em class="citetitle">schedule</em></a>,
<a class="link" href="schedwhen.html" title="schedwhen"><em class="citetitle">schedwhen</em></a>,
<a class="link" href="schedkwhen.html" title="schedkwhen"><em class="citetitle">schedkwhen</em></a>,
<a class="link" href="scoreline.html" title="scoreline"><em class="citetitle">scoreline</em></a>,
<a class="link" href="scoreline_i.html" title="scoreline_i"><em class="citetitle">scoreline_i</em></a></p>
</div>
<div class="refsect1" title="Credits">
<a id="idp41606952"></a>
<h2>Credits</h2>
<p>
</p>
<table border="0" summary="Simple list" class="simplelist">
<tr>
<td>Author: Rasmus Ekman</td>
</tr>
<tr>
<td>EMS, Stockholm, Sweden</td>
</tr>
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<p>
</p>
<p>New in Csound version 4.23</p>
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