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MIDIConnectionEvent

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The MIDIConnectionEvent interface of the Web MIDI API is the event passed to the onstatechange event of the MIDIAccess interface and the onstatechange event of the MIDIPorts interface. This occurs any time a new port becomes available, or when a previously available port becomes unavailable. For example, this event is fired whenever a MIDI device is either plugged in to or unplugged from a computer.

Constructor

MIDIConnectionEvent.MIDIConnectionEvent: Creates a new MIDIConnectionEvent object.

Properties

MIDIConnectionEvent.port: Returns a reference to a MIDIPort instance for a port that has been connected or disconnected."

Examples

Specifications

Specification	Status	Comment
Web MIDI API	Working Draft	Initial definition.

Browser compatibilityUpdate compatibility data on GitHub

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	43	?	?	?	30	?

	Mobile
	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	iOS Safari	Samsung Internet
Basic support	43	43	?	?	30	?	4.0

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https://developer.mozilla.org/en-US/docs/Web/API/MIDIConnectionEvent