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CopyTo Method

Summary

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

Syntax

C++

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

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

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

Parameters

array
The one-dimensional Array that is the destination of the items to be copied from the collection.

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.

Remarks

Note: The Array must have zero-based indexing.

Example

using Leadtools; 
using Leadtools.MediaFoundation; 
using LeadtoolsMediaFoundationExamples.Fixtures; 
 
public bool _result = false; 
public CaptureCtrlForm _form = new CaptureCtrlForm(); 
 
public void CopyToExample() 
{ 
   // reference the capture control  
   CaptureCtrl capturectrl = _form.CaptureCtrl; 
 
   try 
   { 
      // set an video device first, you should use your video device name here 
      if (capturectrl.VideoDevices["USB"] == null) 
         throw new Exception("No USB video device available"); 
 
      capturectrl.VideoDevices["USB"].Selected = true; 
 
      // reference the target formats collection 
      TargetFormats formats = capturectrl.TargetFormats; 
 
      // reference the target format object 
      TargetFormat tf = formats[TargetFormatType.MP4]; 
 
      // reference the target video formats object 
      TargetVideoFormats tvformats = tf.VideoFormats; 
 
      // allocate a new array for the copied target video formats  
      TargetVideoFormat[] copiedFormats = new TargetVideoFormat[tvformats.Count]; 
 
      // copy them 
      tvformats.CopyTo(copiedFormats, 0); 
 
      // set the result to what we expect 
      _result = (copiedFormats.Length == formats.Count); 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
}

Imports Leadtools 
Imports Leadtools.MediaFoundation 
Imports LeadtoolsMediaFoundationExamples.Fixtures 
 
Public _result As Boolean = False 
Public _form As CaptureCtrlForm = New CaptureCtrlForm() 
 
Public Sub CopyToExample() 
   ' reference the capture control  
   Dim capturectrl As CaptureCtrl = _form.CaptureCtrl 
 
   Try 
      ' set an 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 
 
      ' reference the target formats collection 
      Dim formats As TargetFormats = capturectrl.TargetFormats 
 
      ' reference the target format object 
      Dim tf As TargetFormat = formats(TargetFormatType.MP4) 
 
      ' reference the target video formats object 
      Dim tvformats As TargetVideoFormats = tf.VideoFormats 
 
      ' allocate a new array for the copied target formats 
      Dim copiedFormats As TargetVideoFormat() = New TargetVideoFormat(tvformats.Count - 1) {} 
 
      ' copy them 
      tvformats.CopyTo(copiedFormats, 0) 
 
      ' set the result to what we expect 
      _result = (copiedFormats.Length = formats.Count) 
   Catch e1 As Exception 
      _result = False 
   End Try 
End Sub

Requirements

Target Platforms

Reference

TargetVideoFormats Class

TargetVideoFormats Members

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Help Version 20.0.2020.4.2

Leadtools.MediaFoundation Assembly

Introduction

Getting Started

Namespaces

Leadtools.MediaFoundation Namespace

Leadtools.MediaFoundation.Common Namespace

Assemblies