←Select platform

CopyTo Method

Summary

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

Syntax

C#
VB
C++
public void CopyTo( 
   CaptureSize[] array, 
   int arrayIndex 
) 
Public Sub CopyTo( _ 
   ByVal array() As Leadtools.Mediafoundation.CaptureSize, _ 
   ByVal arrayIndex As Integer _ 
)  

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

ExceptionDescription
System.ArgumentNullExceptionThe 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.ArgumentOutOfRangeExceptionThe exception that is thrown when the value of an argument is outside the allowable range of values as defined by the invoked method.
System.ArgumentExceptionThe exception that is thrown when one of the arguments provided to a method is not valid.
Remarks

The array must have zero-based indexing.

Example

C#
VB
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 a 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 video capture size collection 
      CaptureSizes sizes = capturectrl.VideoCaptureSizes; 
 
      // allocate a new array for the copied capture sizes 
      CaptureSize[] copiedSizes = new CaptureSize[sizes.Count]; 
 
      // copy them 
      sizes.CopyTo(copiedSizes, 0); 
 
      // set the result to what we expect 
      _result = (copiedSizes.Length == sizes.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 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 
 
      ' reference the video capture size collection 
      Dim sizes As CaptureSizes = capturectrl.VideoCaptureSizes 
 
      ' allocate a new array for the copied capture sizes 
      Dim copiedSizes As CaptureSize() = New CaptureSize(sizes.Count - 1) {} 
 
      ' copy them 
      sizes.CopyTo(copiedSizes, 0) 
 
      ' set the result to what we expect 
      _result = (copiedSizes.Length = sizes.Count) 
   Catch e1 As Exception 
      _result = False 
   End Try 
End Sub 

Requirements

Target Platforms

Help Version 19.0.2017.10.19
Products | Support | Contact Us | Copyright Notices
© 1991-2017 LEAD Technologies, Inc. All Rights Reserved.

Leadtools.MediaFoundation Assembly