IltmfPlay::put_Volume

#include "ltmf.h"

C Syntax

HRESULT IltmfPlay_put_Volume(pPlay, newVal)

C++ Syntax

HRESULT put_Volume(newVal)

IltmfPlay *pPlay;

pointer to an interface

long newVal;

volume

Sets the volume (amplitude) of the audio signal.

Parameter

Description

pPlay

Pointer to an IltmfPlay interface.

newVal

Value to which to set the volume. The allowable input range is 10,000 to 0.

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 10,000 is silence; the scale is logarithmic. Multiply the desired decibel level by 100 (for example 10,000 = 100 dB).

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

Help Version 19.0.2017.10.19
Products | Support | Contact Us | Copyright Notices
© 1991-2017 LEAD Technologies, Inc. All Rights Reserved.
LEADTOOLS Media Foundation C API Help