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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Music21j Namespace: webmidi</title>  <link type="text/css" rel="stylesheet" href="styles/sunlight.default.css"> <link type="text/css" rel="stylesheet" href="styles/site.spruce.css"> </head> <body> <div class="container-fluid"> <div class="navbar navbar-fixed-top navbar-inverse"> <div class="navbar-inner"> <a class="brand" href="index.html">Music21j</a> <ul class="nav"> <li class="dropdown"> <a href="namespaces.list.html" class="dropdown-toggle" data-toggle="dropdown">Namespaces<b class="caret"></b></a> <ul class="dropdown-menu "> <li> <a href="music21.html">music21</a> </li> <li> <a href="music21.articulations.html">music21.articulations</a> </li> <li> <a href="music21.audioSearch.html">music21.audioSearch</a> </li> <li> <a href="music21.base.html">music21.base</a> </li> <li> <a href="music21.beam.html">music21.beam</a> </li> <li> <a href="music21.chord.html">music21.chord</a> </li> <li> <a 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<li> <a href="global.html#warnBanner">warnBanner</a> </li> </ul> </li> </ul> </div> </div> <div class="row-fluid"> <div class="span8"> <div id="main"> <h1 class="page-title">Namespace: webmidi</h1> <section> <header> <h2> <span class="ancestors"><a href="music21.html">music21</a>.</span> webmidi </h2> </header> <article> <div class="container-overview"> <div class="description"><p>webmidi -- for connecting with external midi devices</p> <p>Uses either the webmidi API or the Jazz plugin</p></div> <dl class="details"> <h5 class="subsection-title">Properties:</h5> <dl> <table class="props table table-striped"> <thead> <tr> <th>Name</th> <th>Type</th> <th class="last">Description</th> </tr> </thead> <tbody> <tr> <td class="name"><code>storedPlugin</code></td> <td class="type"> <span class="param-type">JazzObject</span> | <span class="param-type">undefined</span> </td> <td class="description last"><p>reference to the Jazz object from the plugin; cached from <code>createPlugin</code>.</p></td> </tr> <tr> <td class="name"><code>selectedJazzInterface</code></td> <td class="type"> <span class="param-type">string</span> </td> <td class="description last"><p>the currently connected interface (note that we can only use one right now)</p></td> </tr> </tbody> </table> </dl> <dt class="tag-source">Source:</dt> <dd class="tag-source"> <ul class="dummy"> <li> <a href="music21_webmidi.js.html">music21/webmidi.js</a>, <a href="music21_webmidi.js.html#sunlight-1-line-27">line 27</a> </li> </ul> </dd> </dl> </div> <h3 class="subsection-title">Requires</h3> <ul> <li>module:music21/miditools</li> <li>module:jquery</li> </ul> <h3 class="subsection-title">Methods</h3> <dl> <dt> <h4 class="name" id=".createJazzSelector"><span class="type-signature"><static> </span>createJazzSelector<span class="signature">(<span class="optional">midiSelectDiv</span>, <span class="optional">options</span>)</span><span class="type-signature"> → {DOMObject|undefined}</span></h4> </dt> <dd> <div class="description"> <p>Creates a <select> object for selecting among the MIDI choices in Jazz</p> </div> <h5>Parameters:</h5> <table class="params table table-striped"> <thead> <tr> <th>Name</th> <th>Type</th> <th>Argument</th> <th>Default</th> <th class="last">Description</th> </tr> </thead> <tbody> <tr> <td class="name"><code>midiSelectDiv</code></td> <td class="type"> <span class="param-type">JQueryDOMObject</span> | <span class="param-type">DOMObject</span> </td> <td class="attributes"> <optional><br> </td> <td class="default"> document.body </td> <td class="description last"><p>object to append the select to</p></td> </tr> <tr> <td class="name"><code>options</code></td> <td class="type"> <span class="param-type">object</span> </td> <td class="attributes"> <optional><br> </td> <td class="default"> </td> <td class="description last"><p>see createSelector for details</p></td> </tr> </tbody> </table> <dl class="details"> <dt class="tag-source">Source:</dt> <dd class="tag-source"> <ul class="dummy"> <li> <a href="music21_webmidi.js.html">music21/webmidi.js</a>, <a href="music21_webmidi.js.html#sunlight-1-line-144">line 144</a> </li> </ul> </dd> </dl> <h5>Returns:</h5> <div class="param-desc"> <p>DOM object containing the select tag, or undefined if Jazz cannot be loaded.</p> </div> <dl> <dt> Type </dt> <dd> <span class="param-type">DOMObject</span> | <span class="param-type">undefined</span> </dd> </dl> </dd> <dt> <h4 class="name" id=".createPlugin"><span class="type-signature"><static> </span>createPlugin<span class="signature">(<span class="optional">appendElement</span>, <span class="optional">override</span>)</span><span class="type-signature"> → {Jazz|undefined}</span></h4> </dt> <dd> <div class="description"> <p>Create a hidden tiny, <object> tag in the DOM with the<br>proper classid (<code>CLSID:1ACE1618-1C7D-4561-AEE1-34842AA85E90</code>) to<br>load the Jazz plugin.</p> <p>It will return the plugin if it can or undefined if it cannot. Caches it in webmidi.storedPlugin.</p> </div> <h5>Parameters:</h5> <table class="params table table-striped"> <thead> <tr> <th>Name</th> <th>Type</th> <th>Argument</th> <th>Default</th> <th class="last">Description</th> </tr> </thead> <tbody> <tr> <td class="name"><code>appendElement</code></td> <td class="type"> <span class="param-type">DOMObject</span> </td> <td class="attributes"> <optional><br> </td> <td class="default"> document.body </td> <td class="description last"><p>where to place this hidden object (does not really matter)</p></td> </tr> <tr> <td class="name"><code>override</code></td> <td class="type"> <span class="param-type">Boolean</span> </td> <td class="attributes"> <optional><br> </td> <td class="default"> false </td> <td class="description last"><p>if this method has been called successfully before return the storedPlugin unless override is true.</p></td> </tr> </tbody> </table> <dl class="details"> <dt class="tag-source">Source:</dt> <dd class="tag-source"> <ul class="dummy"> <li> <a href="music21_webmidi.js.html">music21/webmidi.js</a>, <a href="music21_webmidi.js.html#sunlight-1-line-103">line 103</a> </li> </ul> </dd> </dl> <h5>Returns:</h5> <div class="param-desc"> <p>Jazz MIDI plugin object</p> </div> <dl> <dt> Type </dt> <dd> <span class="param-type">Jazz</span> | <span class="param-type">undefined</span> </dd> </dl> </dd> <dt> <h4 class="name" id=".createSelector"><span class="type-signature"><static> </span>createSelector<span class="signature">(<span class="optional">$midiSelectDiv</span>, <span class="optional">options</span>)</span><span class="type-signature"> → {DOMObject|undefined}</span></h4> </dt> <dd> <div class="description"> <p>Creates a <select> object for selecting among the MIDI choices in Jazz</p> <p>The options object has several parameters:</p> <p>{bool} autoupdate -- should this auto update?<br>{function} onsuccess -- function to call on all successful port queries<br>{function} oninputsuccess -- function to call if successful and at least one input device is found<br>{function} oninputempty -- function to call if successful but no input devices are found.<br>{bool} existingMidiSelect -- is there already a select tag for MIDI?</p> </div> <h5>Parameters:</h5> <table class="params table table-striped"> <thead> <tr> <th>Name</th> <th>Type</th> <th>Argument</th> <th>Default</th> <th class="last">Description</th> </tr> </thead> <tbody> <tr> <td class="name"><code>$midiSelectDiv</code></td> <td class="type"> <span class="param-type">JQueryDOMObject</span> | <span class="param-type">DOMObject</span> </td> <td class="attributes"> <optional><br> </td> <td class="default"> $('body') </td> <td class="description last"><p>object to append the select to</p></td> </tr> <tr> <td class="name"><code>options</code></td> <td class="type"> <span class="param-type">object</span> </td> <td class="attributes"> <optional><br> </td> <td class="default"> </td> <td class="description last"><p>see above.</p></td> </tr> </tbody> </table> <dl class="details"> <dt class="tag-source">Source:</dt> <dd class="tag-source"> <ul class="dummy"> <li> <a href="music21_webmidi.js.html">music21/webmidi.js</a>, <a href="music21_webmidi.js.html#sunlight-1-line-248">line 248</a> </li> </ul> </dd> </dl> <h5>Returns:</h5> <div class="param-desc"> <p>DOM object containing the select tag, or undefined if Jazz cannot be loaded.</p> </div> <dl> <dt> Type </dt> <dd> <span class="param-type">DOMObject</span> | <span class="param-type">undefined</span> </dd> </dl> </dd> <dt> <h4 class="name" id=".webmidi.jazzMidiInArrived"><span class="type-signature"><static> </span>webmidi.jazzMidiInArrived<span class="signature">(t, a, b, c)</span><span class="type-signature"></span></h4> </dt> <dd> <div class="description"> <p>Called by Jazz MIDI plugin when an event arrives.</p> <p>Shim to convert the data into WebMIDI API format and then call the WebMIDI API midiInArrived</p> <p>See the MIDI spec for information on parameters</p> </div> <h5>Parameters:</h5> <table class="params table table-striped"> <thead> <tr> <th>Name</th> <th>Type</th> <th class="last">Description</th> </tr> </thead> <tbody> <tr> <td class="name"><code>t</code></td> <td class="type"> <span class="param-type">byte</span> </td> <td class="description last"><p>timing information</p></td> </tr> <tr> <td class="name"><code>a</code></td> <td class="type"> <span class="param-type">byte</span> </td> <td class="description last"><p>data 1</p></td> </tr> <tr> <td class="name"><code>b</code></td> <td class="type"> <span class="param-type">byte</span> </td> <td class="description last"><p>data 2</p></td> </tr> <tr> <td class="name"><code>c</code></td> <td class="type"> <span class="param-type">byte</span> </td> <td class="description last"><p>data 3</p></td> </tr> </tbody> </table> <dl class="details"> <dt class="tag-source">Source:</dt> <dd class="tag-source"> <ul class="dummy"> <li> <a href="music21_webmidi.js.html">music21/webmidi.js</a>, <a href="music21_webmidi.js.html#sunlight-1-line-64">line 64</a> </li> </ul> </dd> </dl> </dd> <dt> <h4 class="name" id=".webmidi.midiInArrived"><span class="type-signature"><static> </span>webmidi.midiInArrived<span class="signature">(midiMessageEvent)</span><span class="type-signature"></span></h4> </dt> <dd> <div class="description"> <p>Called directly when a MIDI event arrives from the WebMIDI API, or via a Shim (jazzMidiInArrived)<br>when MIDI information comes from JazzMIDI</p> <p>Calls the 'raw' and 'general callbacks when a raw midi event (four bytes)<br>arrives.</p> <p>See the MIDI spec for information on the contents of the three parameters.</p> <p>midiMessageEvent should be an object with two keys: timeStamp (int) and data (array of three int values)</p> </div> <h5>Parameters:</h5> <table class="params table table-striped"> <thead> <tr> <th>Name</th> <th>Type</th> <th class="last">Description</th> </tr> </thead> <tbody> <tr> <td class="name"><code>midiMessageEvent</code></td> <td class="type"> <span class="param-type">MidiMessageEvent</span> </td> <td class="description last"><p>midi Information</p></td> </tr> </tbody> </table> <dl class="details"> <dt class="tag-source">Source:</dt> <dd class="tag-source"> <ul class="dummy"> <li> <a href="music21_webmidi.js.html">music21/webmidi.js</a>, <a href="music21_webmidi.js.html#sunlight-1-line-86">line 86</a> </li> </ul> </dd> </dl> </dd> </dl> </article> </section> </div> <div class="clearfix"></div> <footer> <span class="copyright"> Music21j, Copyright © 2013-2018 Michael Scott Cuthbert and cuthbertLab. </span> <br /> <span class="jsdoc-message"> Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.5.5</a> on Wed Jul 4th 2018 using the <a href="https://github.com/terryweiss/docstrap">DocStrap template</a>. </span> </footer> </div> <div class="span3"> <div id="toc"></div> </div> <br clear="both"> </div> </div>  <script src="scripts/docstrap.lib.js"></script> <script 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