Leadtools.MediaFoundation Namespace > CaptureInputs Class > IndexOf Method : IndexOf(String) Method |
'Usage Dim instance As CaptureInputs Dim name As String Dim value As Integer value = instance.IndexOf(name)
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 ' select a video device, use your device name here instead of Analog If capturectrl.VideoDevices("Analog") Is Nothing Then Throw New Exception("No Analog video tuner device available") End If capturectrl.VideoDevices("Analog").Selected = True ' reference the video inputs object Dim inputs As CaptureInputs = capturectrl.VideoInputs ' check the index of a video tuner Dim i As Integer = inputs.IndexOf("Video Tuner") Dim ci As CaptureInput = Nothing If i > -1 Then ' access the input via the collection indexer ci = inputs(i) End If ' check if the collection contains this input ' (it should we just got it with IndexOf above) If inputs.Contains(ci) Then ' set the result to what we expect _result = True End If Catch e1 As Exception _result = False End Try End Sub
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 { // select a video device, use your device name here instead of Analog if (capturectrl.VideoDevices["Analog"] == null) throw new Exception("No Analog video tuner device available"); capturectrl.VideoDevices["Analog"].Selected = true; // reference the video inputs object CaptureInputs inputs = capturectrl.VideoInputs; // check the index of a video tuner int i = inputs.IndexOf("Video Tuner"); CaptureInput ci = null; if (i>-1) // access the input via the collection indexer ci = inputs[i]; // check if the collection contains this input // (it should we just got it with IndexOf above) if (inputs.Contains(ci)) { // set the result to what we expect _result = true; } } catch (Exception) { _result = false; } }