<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>rtclock</title>
<link rel="stylesheet" type="text/css" href="csound.css" />
<link rel="stylesheet" type="text/css" href="syntax-highlighting.css" />
<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" />
<link rel="home" href="index.html" title="The Canonical Csound Reference Manual" />
<link rel="up" href="OpcodesTop.html" title="Orchestra Opcodes and Operators" />
<link rel="prev" href="rspline.html" title="rspline" />
<link rel="next" href="ops.html" title="S" />
</head>
<body>
<div class="navheader">
<table width="100%" summary="Navigation header">
<tr>
<th colspan="3" align="center">rtclock</th>
</tr>
<tr>
<td width="20%" align="left"><a accesskey="p" href="rspline.html">Prev</a> </td>
<th width="60%" align="center">Orchestra Opcodes and Operators</th>
<td width="20%" align="right"> <a accesskey="n" href="ops.html">Next</a></td>
</tr>
</table>
<hr />
</div>
<div class="refentry">
<a id="rtclock"></a>
<div class="titlepage"></div>
<a id="IndexRtclock" class="indexterm"></a>
<div class="refnamediv">
<h2>
<span class="refentrytitle">rtclock</span>
</h2>
<p>rtclock —
Read the real time clock from the operating system.
</p>
</div>
<div class="refsect1">
<a id="idm281472894139432"></a>
<h2>Description</h2>
<p>
Read the real-time clock from the operating system.
</p>
</div>
<div class="refsect1">
<a id="idm281472894135800"></a>
<h2>Syntax</h2>
<pre class="synopsis">ires <span class="command"><strong>rtclock</strong></span></pre>
<pre class="synopsis">kres <span class="command"><strong>rtclock</strong></span></pre>
</div>
<div class="refsect1">
<a id="idm281472894132440"></a>
<h2>Performance</h2>
<p>
Read the real-time clock from operating system. Under Windows, this changes only once per second. Under GNU/Linux, it ticks every microsecond. Performance under other systems varies.
</p>
</div>
<div class="refsect1">
<a id="idm281472894071352"></a>
<h2>Examples</h2>
<p>
Here is an example of the rtclock opcode. It uses the file <a class="ulink" href="examples/rtclock.csd" target="_top"><em class="citetitle">rtclock.csd</em></a>.
</p>
<div class="example">
<a id="idm281472894069672"></a>
<p class="title">
<strong>Example 846. Example of the rtclock 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>
<div class="refsect1">
<a id="idm281472714497432"></a>
<pre class="programlisting">
<span class="nt"><CsoundSynthesizer></span>
<span class="nt"><CsOptions></span>
<span class="c1">; Select audio/midi flags here according to platform</span>
-n <span class="c1">;;;no sound</span>
<span class="c1">;-iadc ;;;uncomment -iadc if realtime audio input is needed too</span>
<span class="c1">; For Non-realtime ouput leave only the line below:</span>
<span class="c1">; -o rtclock.wav -W ;;; for file output any platform</span>
<span class="nt"></CsOptions></span>
<span class="nt"><CsInstruments></span>
<span class="c1">;after an example by Iain McCurdy</span>
<span class="vg">sr</span> <span class="o">=</span> <span class="mi">44100</span>
<span class="vg">ksmps</span> <span class="o">=</span> <span class="mi">32</span>
<span class="vg">nchnls</span> <span class="o">=</span> <span class="mi">2</span>
<span class="vg">0dbfs</span> <span class="o">=</span> <span class="mi">1</span>
<span class="nb">FLcolor</span> <span class="mi">200</span><span class="p">,</span> <span class="mi">200</span><span class="p">,</span> <span class="mi">200</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span>
<span class="c1">; LABEL | WIDTH | HEIGHT | X | Y</span>
<span class="nb">FLpanel</span> <span class="s">"rtclock"</span><span class="p">,</span> <span class="mi">500</span><span class="p">,</span> <span class="mi">130</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span>
<span class="c1">; ON,OFF,TYPE,WIDTH, HEIGHT, X, Y, OPCODE, INS,START,IDUR</span>
gk<span class="n">OnOff</span><span class="p">,</span>i<span class="n">hOnOff</span> <span class="nb">FLbutton</span> <span class="s">"On/Off"</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">22</span><span class="p">,</span> <span class="mi">150</span><span class="p">,</span> <span class="mi">25</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">3600</span>
gk<span class="n">Exit</span><span class="p">,</span>i<span class="n">hExit</span> <span class="nb">FLbutton</span> <span class="s">"exitnow"</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">21</span><span class="p">,</span> <span class="mi">150</span><span class="p">,</span> <span class="mi">25</span><span class="p">,</span> <span class="mi">345</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">999</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mf">0.001</span>
<span class="nb">FLsetColor2</span> <span class="mi">255</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">50</span><span class="p">,</span> i<span class="n">hOnOff</span> <span class="c1">;reddish color</span>
<span class="c1">;VALUE DISPLAY BOXES WIDTH,HEIGHT,X, Y</span>
gi<span class="n">dclock</span> <span class="nb">FLvalue</span> <span class="s">"clock"</span><span class="p">,</span> <span class="mi">100</span><span class="p">,</span> <span class="mi">25</span><span class="p">,</span> <span class="mi">200</span><span class="p">,</span> <span class="mi">60</span>
<span class="nb">FLsetVal_i</span> <span class="mi">1</span><span class="p">,</span> i<span class="n">hOnOff</span>
<span class="nb">FLpanel_end</span>
<span class="nb">FLrun</span>
<span class="kd">instr</span> <span class="nf">1</span>
<span class="k">if</span> gk<span class="n">OnOff</span> <span class="o">!=</span><span class="mi">0</span> <span class="k">kgoto</span> <span class="nl">CONTINUE</span> <span class="c1">;sense if FLTK on/off switch is not off (in which case skip the next line) </span>
<span class="nb">turnoff</span> <span class="c1">;turn this instr. off now</span>
<span class="nl">CONTINUE</span><span class="p">:</span>
k<span class="n">time</span> <span class="nb">rtclock</span> <span class="c1">;clock continues to run even </span>
<span class="nb">FLprintk2</span> k<span class="n">time</span><span class="p">,</span> gi<span class="n">dclock</span> <span class="c1">;after the on/off button was used to stop</span>
<span class="kd">endin</span>
<span class="kd">instr</span> <span class="nf">999</span>
<span class="nb">exitnow</span> <span class="c1">;exit Csound as fast as possible</span>
<span class="kd">endin</span>
<span class="nt"></CsInstruments></span>
<span class="nt"><CsScore></span>
<span class="nb">f</span> <span class="mi">0</span> <span class="mi">60</span> <span class="c1">;runs 60 seconds</span>
<span class="nb">e</span>
<span class="nt"></CsScore></span>
<span class="nt"></CsoundSynthesizer></span>
</pre>
</div>
</div>
</div>
<p><br class="example-break" />
</p>
</div>
<div class="refsect1">
<a id="idm281472894065480"></a>
<h2>Credits</h2>
<p>Author: John ffitch</p>
<p>New in version 4.10</p>
</div>
</div>
<div class="navfooter">
<hr />
<table width="100%" summary="Navigation footer">
<tr>
<td width="40%" align="left"><a accesskey="p" href="rspline.html">Prev</a> </td>
<td width="20%" align="center">
<a accesskey="u" href="OpcodesTop.html">Up</a>
</td>
<td width="40%" align="right"> <a accesskey="n" href="ops.html">Next</a></td>
</tr>
<tr>
<td width="40%" align="left" valign="top">rspline </td>
<td width="20%" align="center">
<a accesskey="h" href="index.html">Home</a>
</td>
<td width="40%" align="right" valign="top"> S</td>
</tr>
</table>
</div>
</body>
</html>
distrib
>
Mageia
>
7
>
armv7hl
>
media
>
core-release
>
by-pkgid
>
5fcfcb7517038d1f44ab4e478e6e61fa
>
files
>
2840
