SignalPresent Property

Visual Basic
C#
C++/CLI

'Declaration
 
Public ReadOnly Property SignalPresent As TunerSignalStrength

'Usage
 
Dim instance As TVTuner
Dim value As TunerSignalStrength
 
value = instance.SignalPresent

public TunerSignalStrength SignalPresent {get;}

public:
property TunerSignalStrength SignalPresent {
   TunerSignalStrength get();
}

Property Value

A TunerSignalStrength enumeration value indicating the signal's presence. For more detailed information, refer to the Microsoft documentation for IAMTuner.SignalPresent.

Indicates whether a signal is present on the current channel.

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.MediaFoundation
Imports LeadtoolsMediaFoundationExamples.Fixtures

Public _result As Boolean = False
Public _form As CaptureCtrlForm = New CaptureCtrlForm()
Public Sub SignalPresentExample()
   Dim capturectrl As CaptureCtrl = _form.CaptureCtrl
   Dim tvtuner As TVTuner = capturectrl.TVTuner
   Dim outFile As String = Path.Combine(LEAD_VARS.MediaDir, "TVTuner_SignalPresentExample.wmv")

   Try
   Catch e1 As Exception
      _result = False
   End Try

   ' we'll loop on the state and pump messages for this example.
   ' but you should not need to if running from a Windows Forms application.
   Do While capturectrl.State = CaptureState.Running
      Application.DoEvents()
   Loop
End Sub

Public NotInheritable Class LEAD_VARS
Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 18\Media"
End Class

using Leadtools;
using Leadtools.MediaFoundation;
using LeadtoolsMediaFoundationExamples.Fixtures;

public bool _result = false;
public CaptureCtrlForm _form = new CaptureCtrlForm();
public void SignalPresentExample()
{
   CaptureCtrl capturectrl = _form.CaptureCtrl;
   TVTuner tvtuner = capturectrl.TVTuner;
   string outFile = Path.Combine(LEAD_VARS.MediaDir,"TVTuner_SignalPresentExample.wmv");

   try
   {
   }
   catch (Exception)
   {
      _result = false;
   }

   // we'll loop on the state and pump messages for this example.
   // but you should not need to if running from a Windows Forms application.
   while (capturectrl.State == CaptureState.Running)
      Application.DoEvents();
}

static class LEAD_VARS
{
public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 18\Media";
}

Target Platforms

Reference

TVTuner Class
TVTuner Members