AvailableTVFormats Property

Visual Basic
C#
C++/CLI

'Declaration
 
Public ReadOnly Property AvailableTVFormats As AnalogVideoStandard

'Usage
 
Dim instance As TVTuner
Dim value As AnalogVideoStandard
 
value = instance.AvailableTVFormats

public AnalogVideoStandard AvailableTVFormats {get;}

public:
property AnalogVideoStandard AvailableTVFormats {
   AnalogVideoStandard get();
}

Property Value

An AnalogVideoStandard enumeration value indicating the standard format types available.

Gets the analog video TV standards supported by the installed tuner. For more detailed information, refer to the Microsoft documentation for IAMTVTuner.get_AvailableTVFormats.

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 AvailableTVFormatsExample()
   ' reference the forms capture control and tv tuner
   Dim capturectrl As CaptureCtrl = _form.CaptureCtrl

   Try
      ' select the first device with analog in it's name
      ' Replace "Analog" with your video capture device name
      If capturectrl.VideoDevices("Analog") Is Nothing Then
         Throw New Exception("No Analog video devices available!")
      End If

      capturectrl.VideoDevices("Analog").Selected = True

      ' get the TV Tuner device
      Dim tvtuner As TVTuner = capturectrl.TVTuner

      ' Check if TV tuner is valid
      If Not tvtuner Is Nothing Then
         ' get the available TV formats
         Dim formats As AnalogVideoStandard = tvtuner.AvailableTVFormats

         ' check the returned formats for NTSC_M and set the result to what we expect
         If (formats And AnalogVideoStandard.NTSC_M) = AnalogVideoStandard.NTSC_M Then
            ' set the result
            If tvtuner.TVFormat = AnalogVideoStandard.NTSC_M Then
               _result = True
            End If
         End If
      End If
   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

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

public bool _result = false;
public CaptureCtrlForm _form = new CaptureCtrlForm();
public void AvailableTVFormatsExample()
{
   // reference the forms capture control and tv tuner
   CaptureCtrl capturectrl = _form.CaptureCtrl;

   try
   {
      // select the first device with analog in it's name
      // Replace "Analog" with your video capture device name
      if (capturectrl.VideoDevices["Analog"] == null)
         throw new Exception("No Analog video devices available!");

      capturectrl.VideoDevices["Analog"].Selected = true;

      // get the TV Tuner device
      TVTuner tvtuner = capturectrl.TVTuner;

      // Check if TV tuner is valid
      if (tvtuner != null)
      {
         // get the available TV formats
         AnalogVideoStandard formats = tvtuner.AvailableTVFormats;

         // check the returned formats for NTSC_M and set the result to what we expect
         if ((formats & AnalogVideoStandard.NTSC_M) == AnalogVideoStandard.NTSC_M)
         {
            // set the result
            if (tvtuner.TVFormat == AnalogVideoStandard.NTSC_M)
               _result = true;
         }
      }
   }
   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();
}

Target Platforms

Reference

TVTuner Class
TVTuner Members