IAMAudioInputMixer::get_MixLevel 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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_MixLevel method retrieves the recording level.
Syntax
HRESULT get_MixLevel(
[out] double *pLevel
);
Parameters
[out] pLevel
Receives the recording level. The following values are possible.
| Value | Description |
|---|---|
| 0.0 to 1.0 | Zero indicates that the recording level is off; the value 1.0 indicates that the recording level is at full volume. Intermediate values are also allowed. |
| AMF_AUTOMATICGAIN | Automatic adjustment of the recording level is enabled. |
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 |