open method

JSPromise<MIDIPort> open()

The open() method of the MIDIPort interface makes the MIDI device connected to this MIDIPort explicitly available.

If the port is successfully opened a new MIDIConnectionEvent is queued to the MIDIPort.statechange_event and MIDIAccess.statechange_event events, and the MIDIPort.connection property is changed to "open".

If the port is already open when this method is called, then the promise will resolve successfully.

Implementation

external JSPromise<MIDIPort> open();