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Sets the volume (amplitude) of the audio signal.
#include "ltmm.h"
| Language | Syntax |
|---|---|
| C | HRESULT IltmmPlay_put_Volume(pPlay, Volume) |
| C++ | HRESULT put_Volume(Volume) |
Pointer to an IltmmPlay interface.
Value to which to set the volume. The allowable input range is 10,000 to 0.
| Value | Meaning |
|---|---|
| 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. |
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).
Win32, x64.
| Language | Example |
|---|---|
| C | Simple Media Player |
| C++ | Simple Media Player |
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