IMFPMediaPlayer::SetVolume method (mfplay.h)
Sets the audio volume.
Syntax
HRESULT SetVolume(
[in] float flVolume
);
Parameters
[in] flVolume
The volume level. Volume is expressed as an attenuation level, where 0.0 indicates silence and 1.0 indicates full volume (no attenuation).
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. |
|
The flVolume parameter is invalid. |
Remarks
If you call this method before playback starts, the setting is applied after playback starts.
This method does not change the master volume level for the player's audio session. Instead, it adjusts the per-channel volume levels for audio stream(s) that belong to the current media item. Other streams in the audio session are not affected. For more information, see Managing the Audio Session.
Requirements
Requirement | Value |
---|---|
Minimum supported client | Windows 7 [desktop apps only] |
Minimum supported server | Windows Server 2008 R2 [desktop apps only] |
Target Platform | Windows |
Header | mfplay.h |
See also
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