LEADTOOLS Media Foundation Help
| LEADTOOLS Media Foundation Help > LEADTOOLS Media Foundation Features > Media Foundation Function References > IltmfPlay Interface > IltmfPlay::put_Volume |
#include "ltmf.h"
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C Syntax |
HRESULT IltmfPlay_put_Volume(pPlay, newVal) |
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C++ Syntax |
HRESULT put_Volume(newVal) |
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IltmfPlay *pPlay; |
/* pointer to an interface */ |
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long newVal; |
/* volume */ |
Sets the volume (amplitude) of the audio signal.
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Parameter |
Description |
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pPlay |
Pointer to an IltmfPlay interface. |
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newVal |
Value to which to set the volume. The allowable input range is 10,000 to 0. |
Returns
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S_OK |
The function was successful. |
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<> 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
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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. |
Win32, x64
See Also
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Elements: |
IltmfPlay::get_Volume, IltmfPlay::put_Balance, IltmfPlay::put_Mute |
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Topics: |
Example
For a C++ example, refer to the Simple Media Player for C++.
