CopyTo Method

Summary

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

Syntax
C#
VB
C++
public void CopyTo( 
   Device[] array, 
   int arrayIndex 
) 
Public Sub CopyTo( _ 
   ByVal array() As Device, _ 
   ByVal arrayIndex As Integer _ 
)  
public: 
void CopyTo(  
   array<Device^>^ array, 
   int arrayIndex 
)  

Parameters

array
The one-dimensional, zero-based 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

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

Example
C#
VB
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 inputs 
   CaptureCtrl capturectrl = _form.CaptureCtrl; 
   Devices devices = capturectrl.VideoDevices; 
 
   try 
   { 
      // set a video device first.  use your video device's name here 
      if (capturectrl.VideoDevices["Analog"] == null) 
         throw new Exception("No Analog video tuner device available"); 
 
      capturectrl.VideoDevices["Analog"].Selected = true; 
 
      // allocate a new array for the copied video devices 
      Device[] copiedDevices = new Device[devices.Count]; 
 
      // copy them 
      devices.CopyTo(copiedDevices, 0); 
 
      // set the result to what we expect 
      _result = (copiedDevices.Length == devices.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 inputs 
   Dim capturectrl As CaptureCtrl = _form.CaptureCtrl 
   Dim devices As Devices = capturectrl.VideoDevices 
 
   Try 
      ' set a video device first, you should use your video device name here 
      If capturectrl.VideoDevices("Analog") Is Nothing Then 
         Throw New Exception("No Analog video tuner device available") 
      End If 
 
      capturectrl.VideoDevices("Analog").Selected = True 
 
      ' allocate a new array for the copied video devices 
      Dim copiedDevices As Device() = New Device(devices.Count - 1) {} 
 
      ' copy them 
      devices.CopyTo(copiedDevices, 0) 
 
      ' set the result to what we expect 
      _result = (copiedDevices.Length = devices.Count) 
   Catch e1 As Exception 
      _result = False 
   End Try 
End Sub 
Requirements

Target Platforms

See Also

Reference

Devices Class

Devices Members

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