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    Interface MIDIPort

    The MIDIPort interface of the Web MIDI API represents a MIDI input or output port. Available only in secure contexts.

    MDN Reference

    interface MIDIPort {
        connection: MIDIPortConnectionState;
        id: string;
        manufacturer: null | string;
        name: null | string;
        onstatechange: null | ((this: MIDIPort, ev: MIDIConnectionEvent) => any);
        state: MIDIPortDeviceState;
        type: MIDIPortType;
        version: null | string;
        addEventListener<K extends "statechange">(
            type: K,
            listener: (this: MIDIPort, ev: MIDIPortEventMap[K]) => any,
            options?: boolean | AddEventListenerOptions,
        ): void;
        addEventListener(
            type: string,
            listener: EventListenerOrEventListenerObject,
            options?: boolean | AddEventListenerOptions,
        ): void;
        close(): Promise<MIDIPort>;
        dispatchEvent(event: Event): boolean;
        open(): Promise<MIDIPort>;
        removeEventListener<K extends "statechange">(
            type: K,
            listener: (this: MIDIPort, ev: MIDIPortEventMap[K]) => any,
            options?: boolean | EventListenerOptions,
        ): void;
        removeEventListener(
            type: string,
            listener: EventListenerOrEventListenerObject,
            options?: boolean | EventListenerOptions,
        ): void;
    }

    Hierarchy

    Index

    Properties

    connection id manufacturer name onstatechange state type version

    Methods

    addEventListener close dispatchEvent open removeEventListener

    Properties

    connection: MIDIPortConnectionState

    The connection read-only property of the MIDIPort interface returns the connection state of the port.

    MDN Reference

    id: string

    The id read-only property of the MIDIPort interface returns the unique ID of the port.

    MDN Reference

    manufacturer: null | string

    The manufacturer read-only property of the MIDIPort interface returns the manufacturer of the port.

    MDN Reference

    name: null | string

    The name read-only property of the MIDIPort interface returns the system name of the port.

    MDN Reference

    onstatechange: null | ((this: MIDIPort, ev: MIDIConnectionEvent) => any)

    MDN Reference

    state: MIDIPortDeviceState

    The state read-only property of the MIDIPort interface returns the state of the port.

    MDN Reference

    type: MIDIPortType

    The type read-only property of the MIDIPort interface returns the type of the port, indicating whether this is an input or output MIDI port.

    MDN Reference

    version: null | string

    The version read-only property of the MIDIPort interface returns the version of the port.

    MDN Reference

    Methods

    • The close() method of the MIDIPort interface makes the access to the MIDI device connected to this MIDIPort unavailable.

      MDN Reference

      Returns Promise<MIDIPort>

    • The dispatchEvent() method of the EventTarget sends an Event to the object, (synchronously) invoking the affected event listeners in the appropriate order.

      MDN Reference

      Parameters

      Returns boolean

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

      MDN Reference

      Returns Promise<MIDIPort>

    • The removeEventListener() method of the EventTarget interface removes an event listener previously registered with EventTarget.addEventListener() from the target.

      MDN Reference

      Type Parameters

      • K extends "statechange"

      Parameters

      Returns void

    • The removeEventListener() method of the EventTarget interface removes an event listener previously registered with EventTarget.addEventListener() from the target.

      MDN Reference

      Parameters

      Returns void

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