IMFAudioStreamVolume::GetChannelVolume method (mfidl.h)

Retrieves the volume level for a specified channel in the audio stream.

Syntax

HRESULT GetChannelVolume(
  [in]  UINT32 dwIndex,
  [out] float  *pfLevel
);

Parameters

[in] dwIndex

Zero-based index of the audio channel. To get the number of channels, call IMFAudioStreamVolume::GetChannelCount.

[out] pfLevel

Receives the volume level for the channel.

Return value

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Return code Description
S_OK
The method succeeded.

Requirements

Requirement Value
Minimum supported client Windows Vista [desktop apps only]
Minimum supported server Windows Server 2008 [desktop apps only]
Target Platform Windows
Header mfidl.h
Library Mfuuid.lib

See also

IMFAudioStreamVolume

Streaming Audio Renderer