IAMAudioInputMixer::get_Loudness method (strmif.h)
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The get_Loudness method retrieves the loudness control setting.
Syntax
HRESULT get_Loudness(
[out] BOOL *pfLoudness
);
Parameters
[out] pfLoudness
Receives one of the following values.
| Value | Description |
|---|---|
| TRUE | Loudness is on. |
| FALSE | Loudness is off. |
Return value
If the method succeeds, it returns S_OK. Otherwise it returns an HRESULT error code.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | strmif.h (include Dshow.h) |
| Library | Strmiids.lib |