MIDIPort: statechange event
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The statechange
event of the MIDIPort
interface is fired when a port changes from open to closed, or closed to open.
Syntax
Use the event name in methods like addEventListener()
, or set an event handler property.
addEventListener('statechange', event => { });
onstatechange = event => { };
Event type
A MIDIConnectionEvent
. Inherits from Event
.
Event properties
MIDIConnectionEvent.port
Read only-
Returns a reference to a
MIDIPort
instance for a port that has been connected or disconnected.
Example
In the following example the current MIDIPort.state
is logged each time it changes.
port.onstatechange = event => {
console.log(port.state);
}
Specifications
No specification found
No specification data found for api.MIDIPort.statechange_event
.
Check for problems with this page or contribute a missing spec_url
to mdn/browser-compat-data. Also make sure the specification is included in w3c/browser-specs.
Browser compatibility
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