Gets the TargetDevice item at the specified index.
public TargetDevice Item(
int index
) { get; }
Public Overloads ReadOnly Property Item( _
ByVal index As Integer _
) As Leadtools.Multimedia.TargetDevice
public:
property Leadtools.Multimedia.TargetDevice^ Item {
Leadtools.Multimedia.TargetDevice^ get(int index);
}
index
The zero-based index of the item to get.
The TargetDevice item at the specified index.
Exceptions
Exception | Description |
---|---|
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. |
This property provides the ability to access a specific item in the collection by using the following syntax: myCollection[index]
The C# language uses the this keyword to define the indexers instead of implementing the Item property. VB implements Item as a default property, which provides the same indexing functionality.
using Leadtools;
using Leadtools.Multimedia;
using LeadtoolsMultimediaExamples.Fixtures;
public bool _result = false;
public ConvertCtrlForm _form = new ConvertCtrlForm();
public void IndexContainsExample()
{
// reference the capture control
ConvertCtrl convertctrl = _form.ConvertCtrl;
// input file
string inFile = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Source.avi");
try
{
// set the input file
convertctrl.SourceFile = inFile;
// reference the video target devices object
TargetDevices devices = convertctrl.TargetDevices;
// check the index of an HD Audio device
int i = devices.IndexOf("HD Audio");
TargetDevice dev = null;
if (i > -1)
// access the input via the collection indexer
dev = devices[i];
// check whether the collection contains this input
// (it should we just got it with IndexOf above)
if (devices.Contains(dev))
{
// set the result to what we expect
_result = true;
}
}
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 ConvertCtrlForm = New ConvertCtrlForm()
Public Sub IndexContainsExample()
' reference the capture control
Dim convertctrl As ConvertCtrl = _form.ConvertCtrl
' input file
Dim inFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Source.avi")
Try
' set the input file
convertctrl.SourceFile = inFile
' reference the video target devices object
Dim devices As TargetDevices = convertctrl.TargetDevices
' check the index of an HD Audio device
Dim i As Integer = devices.IndexOf("HD Audio")
Dim dev As TargetDevice = Nothing
If i > -1 Then
' access the input via the collection indexer
dev = devices(i)
End If
' check if the collection contains this input
' (it should we just got it with IndexOf above)
If devices.Contains(dev) Then
' set the result to what we expect
_result = True
End If
Catch e1 As Exception
_result = False
End Try
End Sub
Public NotInheritable Class LEAD_VARS
Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 19\Media"
End Class
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