public CaptureSubType Item(
string name
) { get; }
Public Overloads ReadOnly Property Item( _
ByVal name As String _
) As CaptureSubType
public:
property CaptureSubType^ Item {
CaptureSubType^ get(String^ name);
}
name
The string name of the item to get.
The CaptureSubType item with the specified name.
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. Capture SubType names are unique. An application can use this method to find a specific capture subtype. If the method fails, an error is raised.
For more information, refer to the Error Codes.
using Leadtools;
using Leadtools.MediaFoundation;
using LeadtoolsMediaFoundationExamples.Fixtures;
public bool _result = false;
public CaptureCtrlForm _form = new CaptureCtrlForm();
public void IndexContainsExample()
{
try
{
// reference the form capture control
CaptureCtrl capturectrl = _form.CaptureCtrl;
// set a video device first, you should use your video device name here
if (capturectrl.VideoDevices["Analog"] == null)
throw new Exception("No Analog video device available");
capturectrl.VideoDevices["Analog"].Selected = true;
// reference the video capture subtypes collection
CaptureSubTypes stypes = capturectrl.VideoCaptureSubTypes;
// check for RGB24 subtype
int i = stypes.IndexOf(Constants.MEDIASUBTYPE_YUY2);
// access the input via the collection indexer
CaptureSubType cs = stypes[i];
// check if the collection contains this subtype
// (it should we just got it with IndexOf above!)
if (stypes.Contains(cs))
{
// set the result to what we expect
_result = true;
}
}
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 IndexContainsExample()
Try
' reference the form capture control
Dim capturectrl As CaptureCtrl = _form.CaptureCtrl
' 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 device available")
End If
capturectrl.VideoDevices("Analog").Selected = True
' reference the video capture subtypes collection
Dim stypes As CaptureSubTypes = capturectrl.VideoCaptureSubTypes
' check for RGB24 subtype
Dim i As Integer = stypes.IndexOf(Leadtools.MediaFoundation.Constants.MEDIASUBTYPE_YUY2)
' access the input via the collection indexer
Dim cs As CaptureSubType = stypes(i)
' check if the collection contains this subtype
' (it should we just got it with IndexOf above!)
If stypes.Contains(cs) Then
' set the result to what we expect
_result = True
End If
Catch e1 As Exception
_result = False
End Try
End Sub
Help Collections
Raster .NET | C API | C++ Class Library | HTML5 JavaScript
Document .NET | C API | C++ Class Library | HTML5 JavaScript
Medical .NET | C API | C++ Class Library | HTML5 JavaScript
Medical Web Viewer .NET
Multimedia
Direct Show .NET | C API | Filters
Media Foundation .NET | C API | Transforms
Supported Platforms
.NET, Java, Android, and iOS/macOS Assemblies
Imaging, Medical, and Document
C API/C++ Class Libraries
Imaging, Medical, and Document
HTML5 JavaScript Libraries
Imaging, Medical, and Document
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