Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
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 |
|---|---|
|
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 |