ISubunit Interface

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ISubunit Interface

The ISubunit interface represents a hardware subunit (for example, a volume control) that lies in the data path between a client and an audio endpoint device. The client obtains a reference to an ISubunit interface by calling the IDeviceTopology::GetSubunit method, or by calling the IPart::QueryInterface method with parameter iid set to REFIID IID_ISubunit.

ISubunit inherits from the IUnknown interface. The ISubunit interface supports only the methods that it inherits from IUnknown.

For more information about ISubunit, see IPart Interface.

Requirements

Client: Windows Vista

Header: Include Devicetopology.h.

See Also

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