Public Sub OptimizeDirectory( _
   ByVal codecs As RasterCodecs, _
   ByVal inputDirectory As String, _
   ByVal outputDirectory As String, _
   ByVal options As ImageOptimizerOptions, _
   ByVal fileExtensions As String, _
   ByVal includeSubDirectories As Boolean, _
   ByVal directoryCallback As ImageOptimizerDirectory _
) 

Dim instance As ImageOptimizer
Dim codecs As RasterCodecs
Dim inputDirectory As String
Dim outputDirectory As String
Dim options As ImageOptimizerOptions
Dim fileExtensions As String
Dim includeSubDirectories As Boolean
Dim directoryCallback As ImageOptimizerDirectory
 
instance.OptimizeDirectory(codecs, inputDirectory, outputDirectory, options, fileExtensions, includeSubDirectories, directoryCallback)

public void OptimizeDirectory( 
   RasterCodecs codecs,
   string inputDirectory,
   string outputDirectory,
   ImageOptimizerOptions options,
   string fileExtensions,
   bool includeSubDirectories,
   ImageOptimizerDirectory directoryCallback
)

public:
void OptimizeDirectory( 
   RasterCodecs^ codecs,
   String^ inputDirectory,
   String^ outputDirectory,
   ImageOptimizerOptions options,
   String^ fileExtensions,
   bool includeSubDirectories,
   ImageOptimizerDirectory^ directoryCallback
) 

Private _imageNo As Integer

Public Sub TestDirImageOptimizer()
   _imageNo = 0

   ' Initialize the RasterCodecs class
   Dim codecs As RasterCodecs = New RasterCodecs()

   ' The input and output directories
   Dim inputDirectory As String = LEAD_VARS.ImagesDir
   Dim outputDirectory As String = Path.Combine(LEAD_VARS.ImagesDir, "OptimizedImages")

   ' Initialize a new Optimizer object
   Dim optimizer As ImageOptimizer = New ImageOptimizer()

   ' Optimization Options
   Dim options As ImageOptimizerOptions = ImageOptimizerOptions.Default

   optimizer.OptimizeDirectory(codecs, _
      inputDirectory, _
      outputDirectory, _
      options, _
      "*.jpg", _
      False, _
      AddressOf ImageOptimizerDirectory)

   'shutdown the RasterCodecs class.
End Sub

Public Function ImageOptimizerDirectory(ByVal data As ImageOptimizerDirectoryData) As Boolean
   Console.WriteLine(String.Format("File Percent = {0}%,    Total Percent = {1}%", data.FilePercent, data.TotalPercent))

   If (_imageNo = data.TotalFolderFilesCount) Then

      ' Operation Done.
      Console.WriteLine("Optimization Operation Completed Successfully")
      Return True

   ElseIf (data.Status = ImageOptimizerDirectoryStatus.PreOptimizingImage) Then
      Dim text As String = String.Format("Optimizing Image {0} ?\n", data.InputFileName)
      Dim result As DialogResult = MessageBox.Show(text, "", MessageBoxButtons.YesNoCancel)

      If (result = DialogResult.Yes) Then
         ' Optimize the image using the default options.
         data.Options = ImageOptimizerOptions.Default
         Return True
      ElseIf (result = DialogResult.No) Then
         ' Skip this image.
         _imageNo += 1
         data.SkipImage = True
      Else
         ' Stop the whole operation.
         Return False
      End If
   ElseIf (data.FilePercent = 100) Then
      _imageNo += 1

      ' Displaying information about the optimized image.
      Dim msg As String = String.Format("Optimizing File ( {0} of {1} ) \n" + _
         "--------------------------------\n" + _
         "Source File Name = {2}\n" + _
         "Detination File Name = {3}\n" + _
         "No of Pages = {4}\n", _
         _imageNo, data.TotalFolderFilesCount, data.InputFileName, data.OutputFileName, data.ImageInfo.TotalPages)

      Console.WriteLine(msg)
   End If
   Return True
End Function

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class

int _imageNo;

   public void TestDirImageOptimizer( )
   {
      _imageNo = 0;

      // Initialize the RasterCodecs class
      RasterCodecs codecs = new RasterCodecs();

      // The input and output directories
      string inputDirectory = LEAD_VARS.ImagesDir;
      string outputDirectory = Path.Combine(LEAD_VARS.ImagesDir, "OptimizedImages");

      // Initialize a new Optimizer object
      ImageOptimizer optimizer = new ImageOptimizer();

      // Optimization Options
      ImageOptimizerOptions options = ImageOptimizerOptions.Default;

      optimizer.OptimizeDirectory(codecs,
         inputDirectory,
         outputDirectory,
         options,
         "*.jpg",
         false,
         ImageOptimizerDirectory);

      //shutdown the RasterCodecs class.
   }

   bool ImageOptimizerDirectory(ImageOptimizerDirectoryData data)
   {
      Console.WriteLine(string.Format("File Percent = {0}%,    Total Percent = {1}%", data.FilePercent, data.TotalPercent));

      if(_imageNo == data.TotalFolderFilesCount)
      {
         // Operation Done.
         Console.WriteLine("Optimization Operation Completed Successfully");
         return true;
      }
      else if(data.Status == ImageOptimizerDirectoryStatus.PreOptimizingImage)
      {
         string text = string.Format("Optimizing Image {0} ?\n", data.InputFileName);
         DialogResult result = MessageBox.Show(text, "", MessageBoxButtons.YesNoCancel);

         if(result == DialogResult.Yes)
         {
            // Optimize the image using the default options.
            data.Options = ImageOptimizerOptions.Default;
            return true;
         }
         else if(result == DialogResult.No)
         {
            // Skip this image.
            _imageNo++;
            data.SkipImage = true;
         }
         else
            // Stop the whole operation.
            return false;
      }
      else if(data.FilePercent == 100)
      {
         _imageNo++;

         // Displaying information about the optimized image.
         string msg = string.Format("Optimizing File ( {0} of {1} ) \n" +
            "--------------------------------\n" +
            "Source File Name = {2}\n" +
            "Detination File Name = {3}\n" +
            "No of Pages = {4}\n",
            _imageNo, data.TotalFolderFilesCount, data.InputFileName, data.OutputFileName, data.ImageInfo.TotalPages);

         Console.WriteLine(msg);
      }
      return true;
   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}