IBasicAudio::put_Volume

A version of this page is also available for

Windows Embedded CE 6.0 R3

4/8/2010

This method sets the volume (amplitude) of the audio signal.

Syntax

HRESULT put_Volume(
  long lVolume
);

Parameters

• lVolume
  [in] Value to which to set the Volume property.

  The allowable input range is –10,000 to 0.

Return Value

Returns an HRESULT value.

E_INVALIDARG is returned for values outside the allowable input range and E_FAIL is returned if the underlying device returns an error.

Remarks

Full volume is 0, and –10,000 is silence; the scale is logarithmic.

Multiply the desired decibel level by 100 (for example –10,000 = –100 dB).

Requirements

Windows Embedded CE	Windows CE 2.12 and later
Windows Mobile	Pocket PC for Windows Mobile Version 5.0 and later, Smartphone for Windows Mobile Version 5.0 and later
Note	Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements For more information, see Setting Up the Build Environment, Version 2.12 requires DXPAK 1.0 or later