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IMSVidAudioRenderer::get_Volume

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Microsoft DirectShow 9.0

IMSVidAudioRenderer::get_Volume

This topic applies to Windows XP or later.

The get_Volume method retrieves the audio renderer's volume level.

Syntax

  HRESULT get_Volume(
  
  long* 
  plVol
  
  );

Parameters

  plVol

[out] Pointer to a variable that receives the volume level, in units of .01 decibel (dB).

Return Values

If the method succeeds, it returns S_OK. If it fails, it returns an error code.

Remarks

Full volume is 0 and silence is –10,000. Divide by 100 to get the equivalent decibel value; for example, –10,000 is –100 dB.

Requirements

  Header: Dshow.h.

  Library: Quartz.dll.

See Also