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VideoWindow Property

Summary

Gets the handle to the current video window.

Syntax

C++/CLI

public virtual IntPtr VideoWindow { get; }

public: 
virtual property IntPtr VideoWindow { 
   IntPtr get(); 
}

Property Value

An IntPtr value representing the video window handle.

Example

using Leadtools; 
using Leadtools.MediaFoundation; 
using LeadtoolsMediaFoundationExamples.Fixtures; 
 
 
public bool _result = false; 
public CaptureCtrlForm _form = new CaptureCtrlForm(); 
public CaptureCtrl _capturectrl; 
 
public void VideoWindowExample() 
{ 
   // reference the capture control 
   _capturectrl = _form.CaptureCtrl; 
 
   // output file 
   string outFile = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_VideoWindowExample.avi"); 
 
   try 
   { 
      // set the source video device, select using your device name here 
      if (_capturectrl.VideoDevices["USB"] == null) 
         throw new Exception("No USB video device available"); 
 
      _capturectrl.VideoDevices["USB"].Selected = true; 
 
      // set the target output file 
      _capturectrl.TargetFile = outFile; 
 
      if (_capturectrl.IsModeAvailable(CaptureMode.Video)) 
      { 
         // enable the preview 
         _capturectrl.Preview = true; 
 
         // subscrible to the started event 
         _capturectrl.Started += new EventHandler(CaptureCtrl_Started); 
 
         // start capture 
         _capturectrl.StartCapture(CaptureMode.Video); 
 
         // get the video window handle 
         IntPtr handle = _capturectrl.VideoWindow; 
 
         // set the result to what we expect 
         _result = (handle != null); 
      } 
   } 
   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(); 
} 
 
void CaptureCtrl_Started(object sender, EventArgs e) 
{ 
   // stop the capture (we don't need a complete capture for this example) 
   _capturectrl.StopCapture(); 
} 
 
static class LEAD_VARS 
{ 
   public const string MediaDir = @"C:\LEADTOOLS22\Media"; 
}

Requirements

Target Platforms

Reference

CaptureCtrl Class

CaptureCtrl Members

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Help Version 22.0.2022.12.7

Leadtools.MediaFoundation Assembly

Introduction

Getting Started

Namespaces

Leadtools.MediaFoundation Namespace

Leadtools.MediaFoundation.Common Namespace

Assemblies