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IAudioEndpointVolume::GetMasterVolumeLevel
The GetMasterVolumeLevel method gets the master volume level, in decibels, of the audio stream that enters or leaves the audio endpoint device.
HRESULT GetMasterVolumeLevel( 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 code | Description |
| E_POINTER | Parameter pfLevelDB is NULL. |
Requirements
Client: Windows Vista
Header: Include Endpointvolume.h.
See Also
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