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IMSVidAnalogTuner::ChannelAvailable Method

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This topic applies to Windows XP or later.
The ChannelAvailable method queries whether a specified channel is available for viewing.
This method is currently not supported.

Syntax

HRESULT ChannelAvailable(
  [in]       long nChannel,
  [in, out]  long *pSignalStrength,
  [out]      VARIANT_BOOL *pfSignalPresent
);

Parameters

  • nChannel [in]
    Integer containing the channel.

  • pSignalStrength [in, out]
    Pointer to a long value that specifies the signal strength.

  • pfSignalPresent [out]
    Pointer to a VARIANT_BOOL flag that indicates whether a signal is present.

Return Value

If the method succeeds, it returns S_OK. If it fails, it returns an error code.

Requirements

Header Declared in Dshow.h.
DLL Requires Quartz.dll.

See Also

IAMTuner::SignalPresent
IMSVidAnalogTuner Interface

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Build date: 12/4/2008