ErrorAbort Event (CaptureCtrl)

Occurs when an error has caused an operation abort.

Syntax

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public event ErrorAbortEventHandler ErrorAbort

'Declaration
 
Public Event ErrorAbort As ErrorAbortEventHandler

'Usage
 
Dim instance As CaptureCtrl
Dim handler As ErrorAbortEventHandler
 
AddHandler instance.ErrorAbort, handler

public event ErrorAbortEventHandler ErrorAbort

add_ErrorAbort(function(sender, e))
remove_ErrorAbort(function(sender, e))

public:
event ErrorAbortEventHandler^ ErrorAbort

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Public _result As Boolean = False
      Public _form As CaptureCtrlForm = New CaptureCtrlForm()
      Public _capturectrl As CaptureCtrl
      Public _totalTime As Double
      Public Sub ErrorAbortExample()
         ' reference the capture control
         _capturectrl = _form.CaptureCtrl

         ' output file
         Dim outFile As String = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_ErrorAbortTest.avi")

         Try
            ' set a test timer to interrupt the capture
            _form.TestTimer.Interval = 5000
            AddHandler _form.TestTimer.Tick, AddressOf TestTimer_Tick
            _form.TestTimer.Start()

            ' initialize the total capture time
            _totalTime = 0

            ' subscribe to the ErrorAbort event
            AddHandler _capturectrl.ErrorAbort, AddressOf CaptureCtrl_ErrorAbort

            ' subscribe to the event
            AddHandler _capturectrl.Progress, AddressOf CaptureCtrl_Progress

            ' set a video device, use the name of your device here
            If _capturectrl.VideoDevices("USB") Is Nothing Then
               Throw New Exception("No USB video device available")
            End If

            _capturectrl.VideoDevices("USB").Selected = True

            ' select the MPEG4 video compressor
            _capturectrl.VideoCompressors.Mpeg4.Selected = True

            ' set an audio device, use the name of your device here
            _capturectrl.AudioDevices("USB").Selected = True

            ' set the target output file
            _capturectrl.TargetFile = outFile

            ' only 10 seconds of capture time
            _capturectrl.TimeLimit = 10
            _capturectrl.UseTimeLimit = True

            ' capture it now!
            _capturectrl.StartCapture(CaptureMode.AutoFramesAndAudio)
         Catch e1 As Exception
            _result = False
         End Try

         ' we'll loop on the state and pump messages for this example.
         ' but you should not need to if running from a Windows Forms application.
         Do While _capturectrl.State = CaptureState.Running
            Application.DoEvents()
         Loop
      End Sub

      Public Sub TestTimer_Tick(ByVal sender As Object, ByVal e As EventArgs)
         ' stop the capture
         _capturectrl.StopCapture()
      End Sub

      Public Sub CaptureCtrl_Progress(ByVal sender As Object, ByVal e As ProgressEventArgs)
         _totalTime = _capturectrl.CaptureTime
      End Sub

      Public Sub CaptureCtrl_ErrorAbort(ByVal sender As Object, ByVal e As ErrorAbortEventArgs)
         ' set result
         _result = True
      End Sub

Public NotInheritable Class LEAD_VARS
   Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 175\Media";
End Class

public bool _result = false;
      public CaptureCtrlForm _form = new CaptureCtrlForm();
      public CaptureCtrl _capturectrl;
      public double _totalTime;
      public void ErrorAbortExample()
      {
         // reference the capture control
         _capturectrl = _form.CaptureCtrl;

         // output file
         string outFile = Path.Combine(LEAD_VARS.MediaDir,"CaptureCtrl_ErrorAbortTest.avi");

         try
         {
            // set a test timer to interrupt the capture
            _form.TestTimer.Interval = 5000;
            _form.TestTimer.Tick += new EventHandler(TestTimer_Tick);
            _form.TestTimer.Start();

            // initialize the total capture time
            _totalTime = 0;

            // subscribe to the ErrorAbort event
            _capturectrl.ErrorAbort += new ErrorAbortEventHandler(CaptureCtrl_ErrorAbort);

            // subscribe to the event
            _capturectrl.Progress += new ProgressEventHandler(CaptureCtrl_Progress);

            // set a video device, use the name of your device here
            if (_capturectrl.VideoDevices["USB"] == null)
               throw new Exception("No USB video device available");

            _capturectrl.VideoDevices["USB"].Selected = true;

            // select the MPEG4 video compressor
            _capturectrl.VideoCompressors.Mpeg4.Selected = true;

            // set an audio device, use the name of your device here
            _capturectrl.AudioDevices["USB"].Selected = true;

            // set the target output file
            _capturectrl.TargetFile = outFile;

            // only 10 seconds of capture time
            _capturectrl.TimeLimit = 10;
            _capturectrl.UseTimeLimit = true;

            // capture it now!
            _capturectrl.StartCapture(CaptureMode.AutoFramesAndAudio);
         }
         catch (Exception)
         {
            _result = false;
         }

         // we'll loop on the state and pump messages for this example.
         // but you should not need to if running from a Windows Forms application.
         while (_capturectrl.State == CaptureState.Running)
            Application.DoEvents();
      }

      public void TestTimer_Tick(object sender, EventArgs e)
      {
         // stop the capture
         _capturectrl.StopCapture();
      }

      public void CaptureCtrl_Progress(object sender, ProgressEventArgs e)
      {
         _totalTime = _capturectrl.CaptureTime;
      }

      public void CaptureCtrl_ErrorAbort(object sender, ErrorAbortEventArgs e)
      {
         // set result
         _result = true;
      }

static class LEAD_VARS
{
   public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 175\Media";
}

ErrorAbort Event (CaptureCtrl)

Reference