LEADTOOLS Multimedia (Leadtools.Multimedia assembly)
LEAD Technologies, Inc

CloseLogFile Method

Example 





Stops the logging of a conversion operation and closes the log file.
Syntax
public virtual void CloseLogFile()
'Declaration
 
Public Overridable Sub CloseLogFile() 
'Usage
 
Dim instance As ConvertCtrl
 
instance.CloseLogFile()
public virtual void CloseLogFile()
 function Leadtools.Multimedia.ConvertCtrl.CloseLogFile()
public:
virtual void CloseLogFile(); 
Remarks
Stops the logging of a conversion operation and closes the log file. Use the OpenLogFile method to open a file to collect log data about a conversion operation. If the conversion operation ends and this method has not been called, the underlying log file will remain open.
Example
Copy CodeCopy Code  
Public _result As Boolean = False
      Public _form As ConvertCtrlForm = New ConvertCtrlForm()
      Public Sub LogFileExample()
         ' reference the convert control
         Dim convertctrl As ConvertCtrl = _form.ConvertCtrl

         ' input and output files
         Dim inFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Source.avi")
         Dim outFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_HasDialogExample.avi")

         ' log file
         Dim logFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Log.txt")

         Try
            ' set the source for conversion
            convertctrl.SourceFile = inFile

            ' set the video and audio compressors
            convertctrl.VideoCompressors.Mpeg2.Selected = True
            convertctrl.AudioCompressors.AC3.Selected = True

            ' set the target output file and format
            convertctrl.TargetFile = outFile

            ' set the target output format
            convertctrl.TargetFormat = TargetFormatType.AVI

                 ' set the log file for the conversion process 
            ' information logging
            convertctrl.OpenLogFile(logFile, LogFileFlags.SourceInfo Or LogFileFlags.GraphBuilder Or LogFileFlags.StreamInfo)

            ' start the capture process
            convertctrl.StartConvert()

            ' 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

            ' close the log file
            convertctrl.CloseLogFile()

            ' set the result to what we expect
            _result = (File.Exists(logFile))
         Catch e1 As Exception
            _result = False
         End Try
      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 ConvertCtrlForm _form = new ConvertCtrlForm();
      public void LogFileExample()
      {
         // reference the convert control
         ConvertCtrl convertctrl = _form.ConvertCtrl;

         // input and output files
         string inFile = Path.Combine(LEAD_VARS.MediaDir,"ConvertCtrl_Source.avi");
         string outFile =Path.Combine(LEAD_VARS.MediaDir,"ConvertCtrl_HasDialogExample.avi");

         // log file
         string logFile = Path.Combine(LEAD_VARS.MediaDir,"ConvertCtrl_Log.txt");

         try
         {
            // set the source for conversion
            convertctrl.SourceFile = inFile;

            // set the video and audio compressors
            convertctrl.VideoCompressors.Mpeg2.Selected = true;
            convertctrl.AudioCompressors.AC3.Selected = true;

            // set the target output file and format
            convertctrl.TargetFile = outFile;

            // set the target output format
            convertctrl.TargetFormat = TargetFormatType.AVI;

            // set the log file for conversion process 
            // information logging
            convertctrl.OpenLogFile(logFile, LogFileFlags.SourceInfo | LogFileFlags.GraphBuilder | LogFileFlags.StreamInfo);

            // start the capture process
            convertctrl.StartConvert();

            // 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();

            // close the log file
            convertctrl.CloseLogFile();

            // set the result to what we expect
            _result = (File.Exists(logFile));
         }
         catch (Exception)
         {
            _result = false;
         }
      }

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

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also

Reference

ConvertCtrl Class
ConvertCtrl Members

 

 


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Leadtools.Multimedia requires a Multimedia or Multimedia Suite license and unlock key. For more information, refer to: LEADTOOLS Toolkit Features