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VideoWidth Property

Summary

Gets the current video width.

Syntax

C++

public virtual float VideoWidth { get; }

Public Overridable ReadOnly Property VideoWidth As Single

public: 
virtual property float VideoWidth { 
   float get(); 
}

Property Value

A value representing the current video width.

Remarks

The value is in the units specified by the ScaleMode property.

Example

using Leadtools; 
using Leadtools.Multimedia; 
using LeadtoolsMultimediaExamples.Fixtures; 
 
public bool _result = false; 
public CaptureCtrlForm _form = new CaptureCtrlForm(); 
 
// capture control 
CaptureCtrl capturectrl; 
 
// output file 
string outFile = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_VideoWidthExample.avi"); 
 
public void VideoWidthExample() 
{ 
   // reference the capture control 
   capturectrl = _form.CaptureCtrl; 
 
   // video width 
   Single Width = 0; 
 
   try 
   { 
      // set the source video device. use your device's name here 
      if (capturectrl.VideoDevices["USB"] == null) 
      { 
         throw new Exception("No USB video device available"); 
      } 
 
      capturectrl.VideoDevices["USB"].Selected = true; 
 
      // select a video compressor 
      capturectrl.VideoCompressors.Mpeg4.Selected = true; 
 
      // set the target output file 
      capturectrl.TargetFile = outFile; 
 
      if (capturectrl.IsModeAvailable(CaptureMode.Video)) 
      { 
         // enable the preview 
         capturectrl.Preview = true; 
 
         // get the video width 
         Width = capturectrl.VideoWidth; 
 
         // set the result to what we expect 
         _result = (Width != 0); 
      } 
   } 
   catch (COMException) 
   { 
      _result = false; 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 19\Media"; 
}

Imports Leadtools 
Imports Leadtools.Multimedia 
Imports LeadtoolsMultimediaExamples.Fixtures 
 
Public _result As Boolean = False 
Public _form As CaptureCtrlForm = New CaptureCtrlForm() 
Public _capturectrl As CaptureCtrl 
 
Public Sub VideoWidthExample() 
   ' reference the capture control 
   _capturectrl = _form.CaptureCtrl 
 
   ' output file 
   Dim outFile As String = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_VideoWidthExample.avi") 
 
   ' video width 
   Dim Width As Single = 0 
 
   Try 
      ' set the source video device, select using your device name here 
      If _capturectrl.VideoDevices("USB") Is Nothing Then 
         Throw New Exception("No USB video device available") 
      End If 
 
      _capturectrl.VideoDevices("USB").Selected = True 
 
      ' select a video compressor 
      _capturectrl.VideoCompressors.Mpeg4.Selected = True 
 
      ' set the target output file 
      _capturectrl.TargetFile = outFile 
 
      If _capturectrl.IsModeAvailable(CaptureMode.Video) Then 
         ' enable the preview 
         _capturectrl.Preview = True 
 
         ' get the video width 
         Width = _capturectrl.VideoHeight 
 
         ' set the result to what we expect 
         _result = (Width <> 0) 
      End If 
   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 
 
Public NotInheritable Class LEAD_VARS 
   Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 19\Media" 
End Class

Requirements

Target Platforms

Reference

CaptureCtrl Class

CaptureCtrl Members

VideoHeight Property

Help Version 19.0.2017.10.27

Leadtools.Multimedia Assembly

Introduction

Getting Started

Namespaces

Leadtools.Multimedia Namespace

Leadtools.Multimedia.Common Namespace

Assemblies