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IAMAudioInputMixer::get_Mono method (strmif.h)

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[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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_Mono method queries whether all channels are combined into a mono signal.

Syntax

HRESULT get_Mono(
  [out] BOOL *pfMono
);

Parameters

[out] pfMono

Receives one of the following values.

Value Description
TRUE Mono
FALSE Multichannel

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

See also

Error and Success Codes

IAMAudioInputMixer Interface

IAMAudioInputMixer::put_Mono