<?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>control</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="connect.html" title="connect" /> <link rel="next" href="convle.html" title="convle" /> </head> <body> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">control</th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="connect.html">Prev</a> </td> <th width="60%" align="center">Orchestra Opcodes and Operators</th> <td width="20%" align="right"> <a accesskey="n" href="convle.html">Next</a></td> </tr> </table> <hr /> </div> <div class="refentry"> <a id="control"></a> <div class="titlepage"></div> <a id="IndexControl" class="indexterm"></a> <div class="refnamediv"> <h2> <span class="refentrytitle">control</span> </h2> <p>control — Configurable slider controls for realtime user input. </p> </div> <div class="refsect1"> <a id="idm281472945602312"></a> <h2>Description</h2> <p> Configurable slider controls for realtime user input. Requires Winsound or TCL/TK. <span class="emphasis"><em>control</em></span> reads a slider's value. </p> </div> <div class="refsect1"> <a id="idm281472945598344"></a> <h2>Syntax</h2> <pre class="synopsis">kres <span class="command"><strong>control</strong></span> knum</pre> </div> <div class="refsect1"> <a id="idm281472945596136"></a> <h2>Performance</h2> <p> Note that this opcode is not available on Windows due to the implimentation of pipes on that system </p> <p> <span class="emphasis"><em>knum</em></span> -- number of the slider to be read. </p> <p> Calling <span class="emphasis"><em>control</em></span> will create a new slider on the screen. There is no theoretical limit to the number of sliders. Windows and TCL/TK use only integers for slider values, so the values may need rescaling. GUIs usually pass values at a fairly slow rate, so it may be advisable to pass the output of control through <span class="emphasis"><em>port</em></span>. </p> </div> <div class="refsect1"> <a id="idm281472945531736"></a> <h2>Examples</h2> <p> See the <a class="link" href="setctrl.html" title="setctrl"><em class="citetitle">setctrl</em></a> opcode for an example. </p> </div> <div class="refsect1"> <a id="idm281472945529608"></a> <h2>See Also</h2> <p> <a class="link" href="setctrl.html" title="setctrl"><em class="citetitle">setctrl</em></a> </p> </div> <div class="refsect1"> <a id="idm281472945527496"></a> <h2>Credits</h2> <p> </p> <table border="0" summary="Simple list" class="simplelist"> <tr> <td>Author: John ffitch</td> </tr> <tr> <td>University of Bath, Codemist. Ltd.</td> </tr> <tr> <td>Bath, UK</td> </tr> <tr> <td>May, 2000</td> </tr> </table> <p> </p> <p>New in Csound version 4.06</p> </div> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"><a accesskey="p" href="connect.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="convle.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">connect </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> convle</td> </tr> </table> </div> </body> </html>