ReactOS  0.4.14-dev-999-g61c8d34
IPerChannelDbLevel Interface Reference

import"devicetopology.idl";

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 IUnknownLPUNKNOWN
 

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 
)

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