IltmmPlay::get_Volume

Show in webframe

#include "ltmm.h"

C Syntax	HRESULT IltmmPlay_get_Volume(pPlay, pVal)
C++ Syntax	RESULT get_Volume(pVal)

IltmmPlay *pPlay;	/* pointer to an interface */
long *pVal;	/* pointer to a variable */

Retrieves the volume (amplitude) of the audio signal.

Parameter	Description
pPlay	Pointer to an IltmmPlay interface.
pVal	Pointer to a variable that receives the volume value. Divide by 100 to get equivalent decibel value (for example 10,000 = 100 dB).

Returns

S_OK	The function was successful.
<> S_OK	An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation.

Comments

A rate of 1.0 indicates normal playback speed.

A rate of 0.5 indicates half speed.

A rate of 1.0 indicates normal speed in reverse.

Required DLLs and Libraries

LTMM

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

Win32, x64

See Also

Elements:	IltmmPlay::get_Balance, IltmmPlay::get_Mute, IltmmPlay::put_Volume
Topics:	Multimedia Function Group

Example

For a C example, refer to the Simple Media Player for C.

For a C++ example, refer to the Simple Media Player for C++.