Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The MIDIConnectionEvent() constructor creates a new MIDIConnectionEvent object. Typically this constructor is not used as events are created when a new port becomes available, and the object is passed to the statechange event.
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new MIDIConnectionEvent(type) new MIDIConnectionEvent(type, midiConnectionEventInit)
typeA string with one of "connect" or "disconnect".
midiConnectionEventInit Optional
A dictionary including the following fields:
portThe MIDIPort instance representing the port that has connected or disconnected.
bubbles Optional
A boolean value indicating whether the event bubbles. The default is false.
cancelable Optional
A boolean value indicating whether the event can be cancelled. The default is false.
composed Optional
A boolean value indicating whether the event will trigger listeners outside of a shadow root (see Event.composed for more details). The default is false.
| Specification |
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| Web MIDI API # dom-midiconnectionevent-constructor |
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| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
MIDIConnectionEvent |
43 | 79 | 108 | No | 30 | No | 43 | 43 | No | 30 | No | 4.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/MIDIConnectionEvent/MIDIConnectionEvent