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IAMTuner::ChannelMinMax 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 ChannelMinMax method retrieves the highest and lowest channels available.

Syntax

HRESULT ChannelMinMax(
  [out] long *lChannelMin,
  [out] long *lChannelMax
);

Parameters

[out] lChannelMin

Pointer to a variable that receives the lowest channel.

[out] lChannelMax

Pointer to a variable that receives the highest channel.

Return value

Returns an HRESULT value. Possible values include the following.

Return code Description
E_POINTER
 NULL pointer argument
S_OK
 Success

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

IAMTuner Interface

International Analog TV Tuning