Determines whether a collection contains a specified TargetAudioFormat item.
public bool Contains(
TargetAudioFormat item
)
Public Function Contains( _
ByVal item As TargetAudioFormat _
) As Boolean
public:
bool Contains(
TargetAudioFormat^ item
)
item
The object to locate in the collection.
true if the item was found in the collection; otherwise, it is false.
Determines whether the collection contains the specified TargetAudioFormat 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 audio device first, you should use your audio device name here
if (capturectrl.AudioDevices["USB"] == null)
throw new Exception("No USB audio device available");
capturectrl.AudioDevices["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 audio formats object
TargetAudioFormats taformats = tf.AudioFormats;
// check the index using a name string
int i = taformats.IndexOf("{00001610-0000-0010-8000-00AA00389B71}");// AAC
// set current selection
taformats.Selection = i;
// access the format via the collection indexer
TargetAudioFormat taformat = taformats[i];
// check if the collection contains this format
// (it should we just got it with IndexOf above)
if (taformats.Contains(taformat))
{
// 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()
' reference the capture control
Dim capturectrl As CaptureCtrl = _form.CaptureCtrl
Try
' set an audio device first, you should use your audio device name here
If capturectrl.AudioDevices("USB") Is Nothing Then
Throw New Exception("No USB audio device available")
End If
capturectrl.AudioDevices("USB").Selected = True
' reference the target formats object
Dim formats As TargetFormats = capturectrl.TargetFormats
' reference the target format object
Dim tf As TargetFormat = formats(TargetFormatType.MP4)
' reference the target audio formats object
Dim taformats As TargetAudioFormats = tf.AudioFormats
' check the index using a name string
Dim i As Integer = taformats.IndexOf("{00001610-0000-0010-8000-00AA00389B71}") ' AAC
' set current selection
taformats.Selection = i
' access the format via the collection indexer
Dim taformat As TargetAudioFormat = taformats(i)
' check if the collection contains this format
' (it should we just got it with IndexOf above)
If taformats.Contains(taformat) Then
' set the result to what we expect
_result = True
End If
Catch e1 As Exception
_result = False
End Try
End Sub
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