ErrorAbort Event (ConvertCtrl)

The event handler is passed an ErrorAbortEventArgs object containing the related error code.

For more information, refer to the Error Codes.

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Imports Leadtools
Imports Leadtools.MediaFoundation
Imports LeadtoolsMediaFoundationExamples.Fixtures

Public _result As Boolean = False
Public _form As ConvertCtrlForm = New ConvertCtrlForm()
Public Sub ErrorAbortExample()
   ' reference the convert control
   Dim convertctrl As ConvertCtrl = _form.ConvertCtrl

   convertctrl.Window = _form.Handle

   ' input and output file names
   Dim inFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Source.avi")
   Dim outFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_ErrorAbortExample.mp4")

   Try
      ' subscribe to the ErrorAbort event
      AddHandler convertctrl.ErrorAbort, AddressOf ConvertCtrl_ErrorAbort

      ' set the allowed streams and target type
      convertctrl.AllowedStreams = convertctrl.TargetFormats(TargetFormatType.MP4).Streams
      convertctrl.TargetFormat = TargetFormatType.MP4

      ' no recompression for video and audio
      Dim index As Integer = -1
      Dim trgvideoformats As TargetVideoFormats = convertctrl.TargetFormats(convertctrl.TargetFormat).VideoFormats
      index = trgvideoformats.IndexOf("{00000000-0000-0000-0000-000000000000}") ' NULL GUID name for no recompression
      trgvideoformats.Selection = index
      Dim trgaudioformats As TargetAudioFormats = convertctrl.TargetFormats(convertctrl.TargetFormat).AudioFormats
      index = trgaudioformats.IndexOf("{00000000-0000-0000-0000-000000000000}") ' NULL GUID name for no recompression
      trgaudioformats.Selection = index

      ' set the source and target files
      convertctrl.SourceFile = inFile
      convertctrl.TargetFile = outFile

      ' show preview
      convertctrl.Preview = True

      ' convert it now!
      convertctrl.StartConvert()
   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 convertctrl.State = ConvertState.Running
      Application.DoEvents()
   Loop
End Sub

Public Sub ConvertCtrl_ErrorAbort(ByVal sender As Object, ByVal e As ErrorAbortEventArgs)
   ' uncomment this line to show the error message
   ' MessageBox.Show(e.errorMessage, "Convert Error");

   ' set result
   _result = True
End Sub

Public NotInheritable Class LEAD_VARS
Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 18\Media"
End Class

using Leadtools;
using Leadtools.MediaFoundation;
using LeadtoolsMediaFoundationExamples.Fixtures;

public bool _result = false;
public ConvertCtrlForm _form = new ConvertCtrlForm();
public void ErrorAbortExample()
{
   // reference the convert control
   ConvertCtrl convertctrl = _form.ConvertCtrl;

   convertctrl.Window = _form.Handle;

   // input and output file names
   string inFile = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Source.avi");
   string outFile = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_ErrorAbortExample.mp4");

   try
   {
      // subscribe to the ErrorAbort event
      convertctrl.ErrorAbort += ConvertCtrl_ErrorAbort;

      // set the allowed streams and target type
      convertctrl.AllowedStreams = convertctrl.TargetFormats[TargetFormatType.MP4].Streams;
      convertctrl.TargetFormat = TargetFormatType.MP4;

      // no recompression for video and audio
      int index = -1;
      TargetVideoFormats targetvideoformats = convertctrl.TargetFormats[convertctrl.TargetFormat].VideoFormats;
      index = targetvideoformats.IndexOf("{00000000-0000-0000-0000-000000000000}");// NULL GUID name for no recompression
      targetvideoformats.Selection = index;
      TargetAudioFormats targetaudioformats = convertctrl.TargetFormats[convertctrl.TargetFormat].AudioFormats;
      index = targetaudioformats.IndexOf("{00000000-0000-0000-0000-000000000000}");// NULL GUID name for no recompression
      targetaudioformats.Selection = index;

      // set the source and target files
      convertctrl.SourceFile = inFile;
      convertctrl.TargetFile = outFile;

      // show preview
      convertctrl.Preview = true;

      // convert it now!
      convertctrl.StartConvert();
   }
   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 (convertctrl.State == ConvertState.Running)
      Application.DoEvents();
}

public void ConvertCtrl_ErrorAbort(object sender, ErrorAbortEventArgs e)
{
   // uncomment this line to show the error message
   // MessageBox.Show(e.errorMessage, "Convert Error");

   // set result
   _result = true;
}

static class LEAD_VARS
{
public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 18\Media";
}

Target Platforms

Reference

ConvertCtrl Class
ConvertCtrl Members