IltmmTVTuner::get_SignalPresent

#include "ltmm.h"

C Syntax	HRESULT IltmmTVTuner_get_SignalPresent(pTV, pVal)
C++ Syntax	HRESULT get_SignalPresent(pVal)

IltmmTVTuner *pTV;	pointer to an interface
long *pVal;	pointer to a variable

Gets a value that indicates whether a signal is present on the current channel.

Parameter	Description
pTV	Pointer to an IltmmTVTuner interface.
pVal	Pointer to a variable to be updated with a value that indicates whether a signal is present on the current channel. Possible values are:
	Value	Meaning
	ltmmTUNER_HASNOSIGNALSTRENGTH	The signal strength cannot be determined now.
	ltmmTUNER_NOSIGNAL	No signal detected.
	ltmmTUNER_SIGNALPRESENT	Signal detected.

Returns

S_OK	The function was successful.
<> S_OK	An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation.

Comments

For more detailed information, refer to the Microsoft documentation for IAMTuner::SignalPresent.

Required DLLs and Libraries

LTMM

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Win32, x64

See Also

Elements:	IltmmTVTuner::SetChannel, IltmmTVTuner::get_Channel
Topics:	Multimedia Function Group

Example

For a C example, refer to IltmmTVTuner::get_SignalPresent Example for C.

For a C++ example, refer to IltmmTVTuner::get_SignalPresent Example for C++.

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