IAudioEndpointVolumeEx Interface Reference

Inheritance diagram for IAudioEndpointVolumeEx:

Collaboration diagram for IAudioEndpointVolumeEx:

Public Member Functions
HRESULT	GetVolumeRangeChannel ([in] UINT iChannel, [out] FLOAT *pflVolumeMindB, [out] FLOAT *pflVolumeMaxdB, [out] FLOAT *pflVolumeIncrementdB)
Public Member Functions inherited from IAudioEndpointVolume
HRESULT	RegisterControlChangeNotify ([in] IAudioEndpointVolumeCallback *pNotify)
HRESULT	UnregisterControlChangeNotify ([in] IAudioEndpointVolumeCallback *pNotify)
HRESULT	GetChannelCount ([out] UINT *pnChannelCount)
HRESULT	SetMasterVolumeLevel ([in] FLOAT fLevelDB, [unique, in] LPCGUID pguidEventContext)
HRESULT	SetMasterVolumeLevelScalar ([in] FLOAT fLevel, [unique, in] LPCGUID pguidEventContext)
HRESULT	GetMasterVolumeLevel ([out] FLOAT *fLevelDB)
HRESULT	GetMasterVolumeLevelScalar ([out] FLOAT *fLevel)
HRESULT	SetChannelVolumeLevel ([in] UINT nChannel, [in] FLOAT fLevelDB, [unique, in] LPCGUID pguidEventContext)
HRESULT	SetChannelVolumeLevelScalar ([in] UINT nChannel, [in] FLOAT fLevel, [unique, in] LPCGUID pguidEventContext)
HRESULT	GetChannelVolumeLevel ([in] UINT nChannel, [out] FLOAT *fLevelDB)
HRESULT	GetChannelVolumeLevelScalar ([in] UINT nChannel, [out] FLOAT *fLevel)
HRESULT	SetMute ([in] BOOL bMute, [unique, in] LPCGUID pguidEventContext)
HRESULT	GetMute ([out] BOOL *bMute)
HRESULT	GetVolumeStepInfo ([out] UINT *pnStep, [out] UINT *pnStepCount)
HRESULT	VolumeStepUp ([unique, in] LPCGUID pguidEventContext)
HRESULT	VolumeStepDown ([unique, in] LPCGUID pguidEventContext)
HRESULT	QueryHardwareSupport ([out] DWORD *pdwHardwareSupportMask)
HRESULT	GetVolumeRange ([out] FLOAT *pflVolumeMindB, [out] FLOAT *pflVolumeMaxdB, [out] FLOAT *pflVolumeIncrementdB)
Public Member Functions inherited from IUnknown
HRESULT	QueryInterface ([in] REFIID riid, [out, iid_is(riid)] void **ppvObject)
ULONG	AddRef ()
ULONG	Release ()

Additional Inherited Members
Public Types inherited from IUnknown
typedef IUnknown *	LPUNKNOWN

Detailed Description

Definition at line 140 of file endpointvolume.idl.

Member Function Documentation

GetVolumeRangeChannel()

HRESULT IAudioEndpointVolumeEx::GetVolumeRangeChannel	(	[in] UINT	iChannel,
		[out] FLOAT *	pflVolumeMindB,
		[out] FLOAT *	pflVolumeMaxdB,
		[out] FLOAT *	pflVolumeIncrementdB
	)

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The documentation for this interface was generated from the following file:

• sdk/include/psdk/endpointvolume.idl