<section data-dfn-for="MIDIInputMap">

<h3 id="MIDIInputMap"><dfn>MIDIInputMap</dfn> Interface</h3>

<pre class="idl">

readonly maplike &lt;DOMString, MIDIInput>;

};

</pre>

<section data-dfn-for="MIDIOutputMap">

<h3 id="MIDIOutputMap"><dfn>MIDIOutputMap</dfn> Interface</h3>

<pre class="idl">

readonly maplike &lt;DOMString, MIDIOutput>;

};

</pre>

<p>This interface provides the methods to list MIDI input and output

devices, and obtain access to an individual device.</p>

<pre class="idl">

readonly attribute MIDIInputMap inputs;

readonly attribute MIDIOutputMap outputs;

attribute EventHandler onstatechange;

<p>This interface represents a MIDI input or output port.</p>

<pre class="idl">

readonly attribute DOMString id;

readonly attribute DOMString? manufacturer;

readonly attribute DOMString? name;

<section data-dfn-for="MIDIInput">

<h3 id="MIDIInput"><dfn>MIDIInput</dfn> Interface</h3>

<pre class="idl">

attribute EventHandler onmidimessage;

};

</pre>

<section data-dfn-for="MIDIOutput">

<h3 id="MIDIOutput"><dfn>MIDIOutput</dfn> Interface</h3>

<pre class="idl">

void send(sequence&lt;octet> data, optional DOMHighResTimeStamp timestamp = 0);

void clear();

};

<h2 id="MIDIMessageEvent"><dfn>MIDIMessageEvent</dfn> Interface</h2>

<p>An event object implementing this interface is passed to a MIDIInput's onmidimessage handler when MIDI messages are received. Note that the DOM {{Event}} <code>timeStamp</code> attribute is defined as a {{DOMHighResTimeStamp}}, and represents the high-resolution time of when the event was received or is to be sent.</p>

<pre class="idl">

interface MIDIMessageEvent : Event {

readonly attribute Uint8Array data;

};

for new devices infrequently. As such, it is suggested that heavy

reliance on connection events not be used.</p>

<pre class="idl">

interface MIDIConnectionEvent : Event {

readonly attribute MIDIPort port;

};