References ▼
#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. | |
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. |
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
Elements: |
|
Topics: |
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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