TargetStream Property (CaptureCtrl)

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public virtual Stream TargetStream {get; set;}

'Declaration
 
Public Overridable Property TargetStream As Stream

'Usage
 
Dim instance As CaptureCtrl
Dim value As Stream
 
instance.TargetStream = value
 
value = instance.TargetStream

public virtual Stream TargetStream {get; set;}

 get_TargetStream();
 set_TargetStream(value);

public:
virtual property Stream^ TargetStream {
   Stream^ get();
   void set (    Stream^ value);
}

Property Value

A System.IO.Stream object for the target stream.

The value of the TargetType property needs to be set to TargetObjectType.Stream for this method.

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

Copy Code

Public _form As CaptureCtrlForm = New CaptureCtrlForm()
      Public _capturectrl As CaptureCtrl = Nothing
      Public _result As Boolean = False
      Public Sub TargetStreamExample()
         ' reference the capture control
         _capturectrl = _form.CaptureCtrl

         ' output file
         Dim outFile As String = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_TargetStreamExample.avi")

         Try
            _capturectrl.VideoDevices("USB").Selected = True
            _capturectrl.TargetType = TargetObjectType.Stream
         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

      '  This method will get the data of the target stream for the capture 
      Private Sub GetTargetData()
         Dim ts As Stream = _capturectrl.TargetStream
         If Not ts Is Nothing Then
            Dim buffer As Byte() = New Byte(CInt(ts.Length)) {}
            Dim read As Integer = ts.Read(buffer, 0, CInt(ts.Length))
         End If
      End Sub

      Public Sub TargetStream_Helper(ByVal sender As Object, ByVal e As EventArgs)
         ' set result
         _result = True
      End Sub

Public NotInheritable Class LEAD_VARS
   Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 175\Media";
End Class

public CaptureCtrlForm _form = new CaptureCtrlForm();
      public CaptureCtrl _capturectrl = null;
      public bool _result = false;
      public void TargetStreamExample()
      {
         // reference the capture control
         _capturectrl = _form.CaptureCtrl;

         // output file
         string outFile = Path.Combine(LEAD_VARS.MediaDir,"CaptureCtrl_TargetStreamExample.avi");

         try
         {
            _capturectrl.VideoDevices["USB"].Selected = true;
            _capturectrl.TargetType = TargetObjectType.Stream;
         }
         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();
      }

      //  This method will get the data of the target stream for the capture 
      private void GetTargetData()
      {
         Stream ts = _capturectrl.TargetStream;
         if (ts != null)
         {
            byte[] buffer = new byte[ts.Length + 1];
            int read = ts.Read(buffer, 0, (int)ts.Length);
         }
      }

      public void TargetStream_Helper(object sender, EventArgs e)
      {
         // set result
         _result = true;
      }

static class LEAD_VARS
{
   public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 175\Media";
}

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

CaptureCtrl Class
CaptureCtrl Members