IMMDevice interface

The IMMDevice interface encapsulates the generic features of a multimedia device resource. In the current implementation of the MMDevice API, the only type of device resource that an IMMDevice interface can represent is an audio endpoint device.

A client can obtain an IMMDevice interface from one of the following methods:

For more information, see IMMDeviceCollection Interface.

After obtaining the IMMDevice interface of an audio endpoint device, a client can obtain an interface that encapsulates the endpoint-specific features of the device by calling the IMMDevice::QueryInterface method with parameter iid set to REFIID IID_IMMEndpoint. For more information, see IMMEndpoint Interface.

For code examples that use the IMMDevice interface, see the following topics:

Members

The IMMDevice interface inherits from the IUnknown interface. IMMDevice also has these types of members:

Methods

The IMMDevice interface has these methods.

MethodDescription
Activate

Creates a COM object with the specified interface.

GetId

Gets a string that identifies the device.

GetState

Gets the current state of the device.

OpenPropertyStore

Gets an interface to the device's property store.

 

Requirements

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2008 [desktop apps only]

Header

Mmdeviceapi.h

See also

IMMDeviceCollection Interface
IMMDeviceCollection::Item
IMMDeviceEnumerator::GetDefaultAudioEndpoint
IMMDeviceEnumerator::GetDevice
IMMEndpoint Interface
MMDevice API

 

 

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