IltmfCapture::get_Volume

#include "ltmf.h"

C Syntax

HRESULT IltmfCapture_get_Volume(pCapture, pVolume)

C++ Syntax

HRESULT get_Volume(pVolume)

IltmfCapture *pCapture;

pointer to an interface

long *pVolume;

pointer to a variable

Retrieves the volume level of the audio stream .

Parameter

Description

pCapture

Pointer to an IltmfCapture interface.

pVolume

Pointer to a variable to be updated with the volume level of the audio stream. Possible values range from 10000 to 0. Divide the value by 100 to get the equivalent decibel value.

Returns

S_OK

The function was successful.

<> S_OK

An error occurred. Refer to the Error Codes or the HRESULT error codes in the MediaFoundation documentation.

Comments

Full volume is 0, and 10000 is silence. The scale is logarithmic.

Required DLLs and Libraries

LTMF

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64

See Also

Elements:

IltmfCapture::put_Volume

Topics:

Media Foundation Function Group

Example

For a C++ example, refer to Using Mute with ltmfCapture Example for C++.

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