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IAMTuner::SignalPresent (Compact 2013)

  • Article

3/26/2014

The SignalPresent method retrieves the strength of the signal on a given channel.

Syntax

HRESULT SignalPresent(
  long* plSignalStrength
);

Parameters

  • plSignalStrength
    [out] Pointer to a variable that receives a value indicating whether a signal is present on the current channel. Can be one of the following values.

    Value

    Description

    AMTUNER_HASNOSIGNALSTRENGTH

    -1

    AMTUNER_NOSIGNAL

    0

    S_OK

    1

    A value of AMTUNER_HASNOSIGNALSTRENGTH means the signal strength cannot be determined at this time.

Return Value

Returns an HRESULT value.

Requirements

Header

dshow.h,
strmif.h

Library

Strmiids.lib

See Also

Reference

IAMTuner Interface