public VideoFormat Item(
int index
) { get; }
public:
property VideoFormat^ default [int] {
VideoFormat^ get(int index);
}
index
The zero-based index of the item to get.
The VideoFormat 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 makes it possible to access a specific item in the collection by using the following syntax: myCollection[index]. The C# language uses 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.MediaFoundation;
using LeadtoolsMediaFoundationExamples.Fixtures;
public bool _result = false;
public CaptureCtrlForm _form = new CaptureCtrlForm();
public void IndexContainsExample()
{
// reference the capture control
CaptureCtrl capturectrl = _form.CaptureCtrl;
// reference the video formats object
VideoFormats videoformats = capturectrl.VideoCaptureFormats;
try
{
// select a video device, use your device name here instead of USB
if (capturectrl.VideoDevices["USB"] == null)
throw new Exception("No USB video device available");
capturectrl.VideoDevices["USB"].Selected = true;
// check the index of YUY2 320 x 240 video
int i = videoformats.IndexOf("{32595559-0000-0010-8000-00AA00389B71}", 320, 240);
// access the format via the collection indexer
VideoFormat vf = videoformats[i];
// check if the collection contains this format
// (it should we just got it with IndexOf above)
if (videoformats.Contains(vf))
{
// set the result to what we expect
_result = true;
}
}
catch (Exception)
{
_result = false;
}
}
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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