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UID title description helpviewer_keywords old-location tech.root ms.assetid ms.date ms.keywords req.header req.include-header req.target-type req.target-min-winverclnt req.target-min-winversvr req.kmdf-ver req.umdf-ver req.ddi-compliance req.unicode-ansi req.idl req.max-support req.namespace req.assembly req.type-library req.lib req.dll req.irql targetos req.typenames req.redist ms.custom f1_keywords dev_langs topic_type api_type api_location api_name
NF:strmif.IAMTVTuner.get_VideoFrequency
IAMTVTuner::get_VideoFrequency (strmif.h)
The get_VideoFrequency method retrieves the current video frequency.
IAMTVTuner interface [DirectShow]
get_VideoFrequency method
IAMTVTuner.get_VideoFrequency
IAMTVTuner::get_VideoFrequency
IAMTVTunerget_VideoFrequency
dshow.iamtvtuner_get_videofrequency
get_VideoFrequency
get_VideoFrequency method [DirectShow]
get_VideoFrequency method [DirectShow]
IAMTVTuner interface
strmif/IAMTVTuner::get_VideoFrequency
dshow\iamtvtuner_get_videofrequency.htm
dshow
d19552ce-1314-4217-9bd3-72369b4334cf
4/26/2023
IAMTVTuner interface [DirectShow],get_VideoFrequency method, IAMTVTuner.get_VideoFrequency, IAMTVTuner::get_VideoFrequency, IAMTVTunerget_VideoFrequency, dshow.iamtvtuner_get_videofrequency, get_VideoFrequency, get_VideoFrequency method [DirectShow], get_VideoFrequency method [DirectShow],IAMTVTuner interface, strmif/IAMTVTuner::get_VideoFrequency
strmif.h
Dshow.h
Windows
Windows 2000 Professional [desktop apps only]
Windows 2000 Server [desktop apps only]
Strmiids.lib
Windows
19H1
IAMTVTuner::get_VideoFrequency
strmif/IAMTVTuner::get_VideoFrequency
c++
APIRef
kbSyntax
COM
Strmiids.lib
Strmiids.dll
IAMTVTuner.get_VideoFrequency

IAMTVTuner::get_VideoFrequency

-description

[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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_VideoFrequency method retrieves the current video frequency.

-parameters

-param lFreq [out]

Pointer to a variable that receives the video frequency, in hertz (Hz).

-returns

Returns an HRESULT value that depends on the implementation of the interface.

-remarks

This is a diagnostic method that enables you to examine the exact frequency being used for a given channel.

-see-also

Error and Success Codes

IAMTVTuner Interface

IAMTuner Interface