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TVFormat Property

Summary

Gets the analog video TV standard format in use.

Syntax

C#
VB
C++
public AnalogVideoStandard TVFormat { get; } 
Public ReadOnly Property TVFormat As Leadtools.Mediafoundation.AnalogVideoStandard 

Property Value

A AnalogVideoStandard enumeration value indicating the current standard format in use.

Remarks

Gets the analog video TV standard format in use.

Example

C#
VB
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(); 
} 
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 

Requirements

Target Platforms

See Also

Reference

TVTuner Class

TVTuner Members

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