IPerChannelDbLevel Interface Reference

Inheritance diagram for IPerChannelDbLevel:

Collaboration diagram for IPerChannelDbLevel:

Public Member Functions
HRESULT	GetChannelCount ([out] UINT *pcChannels)
HRESULT	GetLevelRange ([in] UINT nChannel, [out] float *pfMinLevelDB, [out] float *pfMaxLevelDB, [out] float *pfStepping)
HRESULT	GetLevel ([in] UINT nChannel, [out] float *pfLevelDB)
HRESULT	SetLevel ([in] UINT nChannel, [in] float fLevelDB, [in, unique] LPCGUID pguidEventContext)
HRESULT	SetLevelUniform ([in] float fLevelDB, [in, unique] LPCGUID pguidEventContext)
HRESULT	SetLevelAllChannels ([size_is(cChannels), in] float *aLevelsDB, [in] ULONG cChannels, [in] LPCGUID pguidEventContext)
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 234 of file devicetopology.idl.

Member Function Documentation

GetChannelCount()

HRESULT IPerChannelDbLevel::GetChannelCount

(

[out] UINT *

pcChannels

)

GetLevel()

HRESULT IPerChannelDbLevel::GetLevel	(	[in] UINT	nChannel,
		[out] float *	pfLevelDB
	)

GetLevelRange()

HRESULT IPerChannelDbLevel::GetLevelRange	(	[in] UINT	nChannel,
		[out] float *	pfMinLevelDB,
		[out] float *	pfMaxLevelDB,
		[out] float *	pfStepping
	)

SetLevel()

HRESULT IPerChannelDbLevel::SetLevel	(	[in] UINT	nChannel,
		[in] float	fLevelDB,
		[in, unique] LPCGUID	pguidEventContext
	)

SetLevelAllChannels()

HRESULT IPerChannelDbLevel::SetLevelAllChannels	(	[size_is(cChannels), in] float *	aLevelsDB,
		[in] ULONG	cChannels,
		[in] LPCGUID	pguidEventContext
	)

SetLevelUniform()

HRESULT IPerChannelDbLevel::SetLevelUniform	(	[in] float	fLevelDB,
		[in, unique] LPCGUID	pguidEventContext
	)

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

• sdk/include/psdk/devicetopology.idl