IMMNotificationClient class com

Provides notifications when an audio endpoint device is added or removed, when the state or properties of an endpoint device change, or when there is a change in the default role assigned to an endpoint device.

To learn more, see learn.microsoft.com/windows/win32/api/mmdeviceapi/nn-mmdeviceapi-immnotificationclient.

Inheritance

• Object
• IUnknown
• IMMNotificationClient

Implemented types

• ComInterface

Constructors

IMMNotificationClient(VTablePointer ptr)

Creates a new instance of IMMNotificationClient from a VTablePointer.

IMMNotificationClient.from(IUnknown interface)

Creates a new instance of IMMNotificationClient from an existing interface.

factory

Properties

hashCode → int

The hash code for this object.

no setter, inherited

ptr → VTablePointer

final, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

addRef() → int

Increments the reference count of this COM object.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

onDefaultDeviceChanged(EDataFlow flow, ERole role, PCWSTR? pwstrDefaultDeviceId) → void

Notifies the client that the default audio endpoint device for a particular device role has changed.

onDeviceAdded(PCWSTR pwstrDeviceId) → void

Indicates that a new audio endpoint device has been added.

onDeviceRemoved(PCWSTR pwstrDeviceId) → void

Indicates that an audio endpoint device has been removed.

onDeviceStateChanged(PCWSTR pwstrDeviceId, DEVICE_STATE dwNewState) → void

Indicates that the state of an audio endpoint device has changed.

onPropertyValueChanged(PCWSTR pwstrDeviceId, PROPERTYKEY key) → void

Indicates that the value of a property belonging to an audio endpoint device has changed.

queryInterface<T extends IUnknown>() → T

Queries this COM object for a specific interface defined by the type parameter T.

inherited

release() → int

Decrements the reference count of this COM object.

inherited

toString() → String

A string representation of this object.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited