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IAudioEndpointVolume::GetMasterVolumeLevel method

The GetMasterVolumeLevel method gets the master volume level, in decibels, of the audio stream that enters or leaves the audio endpoint device.

Syntax


HRESULT GetMasterVolumeLevel(
  [out]  float *pfLevelDB
);

Parameters

pfLevelDB [out]

Pointer to the master volume level. This parameter points to a float variable into which the method writes the volume level in decibels. To get the range of volume levels obtained from this method, call the IAudioEndpointVolume::GetVolumeRange method.

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 codeDescription
E_POINTER

Parameter pfLevelDB is NULL.

 

Requirements

Minimum supported client

Windows Vista [desktop apps | Windows Store apps]

Minimum supported server

Windows Server 2008 [desktop apps | Windows Store apps]

Header

Endpointvolume.h

See also

IAudioEndpointVolume Interface
IAudioEndpointVolume::GetVolumeRange

 

 

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