public int IndexOf(
TargetVideoFormat item
)
public:
int IndexOf(
TargetVideoFormat^ item
)
item
The TargetVideoFormat item to locate in the IList.
System.Int32
This method uses the Find method of the underlying item collection to locate the desired item.
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;
try
{
// set an 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 target formats object
TargetFormats formats = capturectrl.TargetFormats;
// reference the target format object
TargetFormat tf = formats[TargetFormatType.MP4];
// reference the target video formats object
TargetVideoFormats tvformats = tf.VideoFormats;
// check the index using a name string
int i = tvformats.IndexOf("{34363248-0000-0010-8000-00AA00389B71}");// H264
// get target video format object
TargetVideoFormat tvf = tvformats[i];
// make sure the target video format object's name equals {34363248-0000-0010-8000-00AA00389B71}
if (tvf.Name == "{34363248-0000-0010-8000-00AA00389B71}")
{
// get target video format friendly name, use it for view propose.
string friendlyname = tvf.FriendlyName;
}
else
throw new Exception();
// select it
tvf.Selected = true;
// check if the collection contains this format
// (it should we just got it with IndexOf above)
if (tvformats.Contains(tvf))
{
// set the result to what we expect
_result = true;
}
}
catch (Exception)
{
_result = false;
}
}
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