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Selected Property
See Also 
Leadtools.Multimedia Namespace > CaptureSubType Class : Selected Property



Gets or sets the capture subtype selection state.

Syntax

Visual Basic (Declaration) 
Public Property Selected As Boolean
Visual Basic (Usage)Copy Code
Dim instance As CaptureSubType
Dim value As Boolean
 
instance.Selected = value
 
value = instance.Selected
C# 
public bool Selected {get; set;}
C++/CLI 
public:
property bool Selected {
   bool get();
   void set (    bool value);
}

Property Value

true if the capture subtype is currently selected; false, otherwise

Example

Visual BasicCopy Code
Public _result As Boolean = False
  Public _form As CaptureCtrlForm = New CaptureCtrlForm()
  Public Sub CaptureSubTypesExample()
     Dim name, friendlyName As String
     Dim selection As Integer

     ' reference the capture control
     Dim capturectrl As CaptureCtrl = _form.CaptureCtrl

     ' select a video device, use your device name here instead of Analog
     If capturectrl.VideoDevices("Analog") Is Nothing Then
        Throw New Exception("No Analog video tuner device available")
     End If

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

     ' get the audio inputs object
     Dim subTypes As CaptureSubTypes = capturectrl.VideoCaptureSubTypes

     ' save the current subtype selection
     selection = subTypes.Selection

     Try
        ' select an capture subtype by name for MPEG2Video if available
        If Not subTypes(Leadtools.Multimedia.Constants.MEDIASUBTYPE_MPEG2Video) Is Nothing AndAlso capturectrl.VideoCaptureStreamType = Leadtools.Multimedia.Constants.MEDIATYPE_Stream Then
           subTypes(Leadtools.Multimedia.Constants.MEDIASUBTYPE_MPEG2Video).Selected = True
        Else ' else try YUY2
           If Not subTypes(Leadtools.Multimedia.Constants.MEDIASUBTYPE_YUY2) Is Nothing Then
              subTypes(Leadtools.Multimedia.Constants.MEDIASUBTYPE_YUY2).Selected = True
     End If
     End If

     For Each cst As CaptureSubType In subTypes
       ' get the subtype properties
       name = cst.Name
       friendlyName = cst.FriendlyName

       ' if we found the video tuner input
       If friendlyName = "YUY2" Then
         ' select it and break
         cst.Selected = True
         Exit For
       End If
     Next cst

     ' set the result to what we expect
     _result = (selection = subTypes.Selection)

  Catch e1 As Exception
     _result = False
  End Try
End Sub
C#Copy Code
public bool _result = false;
public CaptureCtrlForm _form = new CaptureCtrlForm();
public void CaptureSubTypesExample()
{
   string name, friendlyName;
   int selection;

   // reference the capture control
   CaptureCtrl capturectrl = _form.CaptureCtrl;

   // select a video device, use your device name here instead of Analog
   if (capturectrl.VideoDevices["Analog"] == null)
      throw new Exception("No Analog video tuner device available");

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

   // get the audio inputs object
   CaptureSubTypes subTypes = capturectrl.VideoCaptureSubTypes;

   // save the current subtype selection
   selection = subTypes.Selection;

   try
   {
      // select an capture subtype by name for MPEG2Video if available
      if (subTypes[Constants.MEDIASUBTYPE_MPEG2Video] != null
         && capturectrl.VideoCaptureStreamType == Constants.MEDIATYPE_Stream)
      {
         subTypes[Constants.MEDIASUBTYPE_MPEG2Video].Selected = true;
      }
      else // else try YUY2
      if (subTypes[Constants.MEDIASUBTYPE_YUY2] != null)
      {
         subTypes[Constants.MEDIASUBTYPE_YUY2].Selected = true;
      }

      foreach (CaptureSubType cst in subTypes)
      {
         // get the subtype properties
         name = cst.Name;
         friendlyName = cst.FriendlyName;

         // if we found the video tuner input
         if (friendlyName == "YUY2")
         {
            // select it and break
            cst.Selected = true;
            break;
         }
      }

      // set the result to what we expect
      _result = (selection == subTypes.Selection);

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

Remarks

Gets or sets the capture subtype selection state. Assignment can raise an error exception. For more information, refer to the Error Codes.

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7

See Also