IltmmPlay::put_Volume

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#include "ltmm.h"

C Syntax	HRESULT IltmmPlay_put_Volume(pPlay, newVal)
C++ Syntax	HRESULT put_Volume(newVal)

IltmmPlay *pPlay;	/* pointer to an interface */
long newVal;	/* volume */

Sets the volume (amplitude) of the audio signal.

Parameter	Description
pPlay	Pointer to an IltmmPlay 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 DirectShow 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

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_Volume, IltmmPlay::put_Balance, IltmmPlay::put_Mute
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++.