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Retrieves the volume (amplitude) of the audio signal.
#include "ltmm.h"
| Language | Syntax |
|---|---|
| C | HRESULT IltmmPlay_get_Volume(pPlay, pVolume) |
| C++ | HRESULT get_Volume(pVolume) |
Pointer to an IltmmPlay interface.
Pointer to a variable that receives the volume value. Divide by 100 to get equivalent decibel value (for example 10,000 = 100 dB).
| 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. |
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.
Win32, x64.
| Language | Example |
|---|---|
| C | Simple Media Player |
| C++ | Simple Media Player |
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