ISimpleAudioVolume::GetMute method (audioclient.h)
The GetMute method retrieves the current muting state for the audio session.
HRESULT GetMute( [out] BOOL *pbMute );
Pointer to a BOOL variable into which the method writes the muting state. TRUE indicates that muting is enabled. FALSE indicates that it is disabled.
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.
||Parameter pbMute is NULL.|
||The audio endpoint device has been unplugged, or the audio hardware or associated hardware resources have been reconfigured, disabled, removed, or otherwise made unavailable for use.|
||The Windows audio service is not running.|
|Minimum supported client||Windows Vista [desktop apps | UWP apps]|
|Minimum supported server||Windows Server 2008 [desktop apps | UWP apps]|