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IAudioChannelConfig::SetChannelConfig

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IAudioChannelConfig::SetChannelConfig

The SetChannelConfig method sets the channel-configuration mask in a channel-configuration control.

HRESULT SetChannelConfig(
  DWORD  dwConfig,
  LPCGUID  pguidEventContext
);

Parameters

dwConfig

[in]  The channel-configuration mask.

pguidEventContext

[in] Context value for the IControlChangeNotify::OnNotify method. This parameter points to an event-context GUID. If the SetChannelConfig call changes the state of the channel-configuration control, all clients that have registered IControlChangeNotify interfaces with that control receive notifications. In its implementation of the OnNotify method, a client can inspect the event-context GUID to discover whether it or another client is the source of the control-change event. If the caller supplies a NULL pointer for this parameter, the client's notification method receives a NULL context pointer.

Return Value

If the method succeeds, it returns S_OK. If it fails, possible return codes include, but are not limited to, the values shown in the following table.

Return code Description
E_OUTOFMEMORY Out of memory.

Remarks

For information about channel-configuration masks, see the discussion of the KSPROPERTY_AUDIO_CHANNEL_CONFIG property in the Windows DDK documentation.

Requirements

Client: Windows Vista

Header: Include Devicetopology.h.

See Also

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