TargetStream Property

Summary

Gets or sets a reference to the media target stream.

Syntax
C#
VB
C++
public virtual Stream TargetStream { get; set; } 
Public Overridable Property TargetStream As Stream 
public: 
virtual property Stream^ TargetStream { 
   Stream^ get(); 
   void set (    Stream^ ); 
} 

Property Value

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

Remarks

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

Example
C#
VB
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 20\Media"; 
} 
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 20\Media" 
End Class 
Requirements

Target Platforms

Help Version 20.0.2019.11.25
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Leadtools.Multimedia Assembly