TargetStream Property (CaptureCtrl)

Visual Basic
C#
C++/CLI

'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;}

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

Imports Leadtools
Imports Leadtools.Multimedia
Imports LeadtoolsMultimediaExamples.Fixtures

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 18\Media"
End Class

using Leadtools;
using Leadtools.Multimedia;
using LeadtoolsMultimediaExamples.Fixtures;

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 18\Media";
}

Target Platforms

Reference

CaptureCtrl Class
CaptureCtrl Members