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.  


Creates a new MIDIConnectionEvent object.


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




Specification Status Comment
Web MIDI API Working Draft Initial definition.

Browser compatibility

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ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
MIDIConnectionEventChrome Full support 43Edge ? Firefox ? IE ? Opera Full support 30Safari ? WebView Android Full support 43Chrome Android Full support 43Edge Mobile ? Firefox Android ? Opera Android Full support 30Safari iOS ? Samsung Internet Android Full support 4.0


Full support  
Full support
Compatibility unknown  
Compatibility unknown

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