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CopyTo Method

Summary

Copies the items of the collection to a VideoFormat array, starting at a specified array index.

Syntax

C++

public void CopyTo( 
   VideoFormat[] array, 
   int arrayIndex 
)

Public Sub CopyTo( _ 
   ByVal array() As VideoFormat, _ 
   ByVal arrayIndex As Integer _ 
)

public: 
void CopyTo(  
   array<VideoFormat^>^ array, 
   int arrayIndex 
)

Parameters

array
The one-dimensional Array that is the destination of the items to be copied from the collection. Note: The Array must have zero-based indexing.

arrayIndex
The zero-based index in the destination array at which copying begins.

Exceptions

Exception	Description
System.ArgumentNullException	The exception that is thrown when a null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.
System.ArgumentOutOfRangeException	The exception that is thrown when the value of an argument is outside the allowable range of values as defined by the invoked method.
System.ArgumentException	The exception that is thrown when one of the arguments provided to a method is not valid.

Example

using Leadtools; 
using Leadtools.Multimedia; 
using LeadtoolsMultimediaExamples.Fixtures; 
 
public bool _result = false; 
public CaptureCtrlForm _form = new CaptureCtrlForm(); 
 
public void CopyToExample() 
{ 
   // reference the capture control and its video formats 
   CaptureCtrl capturectrl = _form.CaptureCtrl; 
   VideoFormats videoformats = capturectrl.VideoCaptureFormats; 
 
   try 
   { 
      // set a video device first.  use your video device's name here 
      if (capturectrl.VideoDevices["USB"] == null) 
         throw new Exception("No USB video device available"); 
 
      capturectrl.VideoDevices["USB"].Selected = true; 
 
      // allocate a new array for the copied video formats 
      VideoFormat[] copiedFormats = new VideoFormat[videoformats.Count]; 
 
      // copy them 
      videoformats.CopyTo(copiedFormats, 0); 
 
      // set the result to what we expect 
      _result = (copiedFormats.Length == videoformats.Count); 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
}

Imports Leadtools 
Imports Leadtools.Multimedia 
Imports LeadtoolsMultimediaExamples.Fixtures 
 
Public _result As Boolean = False 
Public _form As CaptureCtrlForm = New CaptureCtrlForm() 
 
Public Sub CopyToExample() 
   ' reference the capture control and it's video formats 
   Dim capturectrl As CaptureCtrl = _form.CaptureCtrl 
   Dim videoformats As VideoFormats = capturectrl.VideoCaptureFormats 
 
   Try 
      ' set a video device first, you should use your video 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 
 
      ' allocate a new array for the copied video formats 
      Dim copiedFormats As VideoFormat() = New VideoFormat(videoformats.Count - 1) {} 
 
      ' copy them 
      videoformats.CopyTo(copiedFormats, 0) 
 
      ' set the result to what we expect 
      _result = (copiedFormats.Length = videoformats.Count) 
   Catch e1 As Exception 
      _result = False 
   End Try 
End Sub

Requirements

Target Platforms

Reference

VideoFormats Class

VideoFormats Members

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Help Version 20.0.2020.4.2

Leadtools.Multimedia Assembly

Introduction

Getting Started

Namespaces

Leadtools.Multimedia Namespace

Leadtools.Multimedia.Common Namespace

Assemblies