ImageOptimizerDirectory Delegate

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

public delegate bool ImageOptimizerDirectory( 
   ImageOptimizerDirectoryData data
)

'Declaration
 
Public Delegate Function ImageOptimizerDirectory( _
   ByVal data As ImageOptimizerDirectoryData _
) As Boolean

'Usage
 
Dim instance As New ImageOptimizerDirectory(AddressOf HandlerMethod)

public delegate bool ImageOptimizerDirectory( 
   ImageOptimizerDirectoryData data
)

ImageOptimizerDirectory( 
   data 
)

public delegate bool ImageOptimizerDirectory( 
   ImageOptimizerDirectoryData^ data
)

Parameters

data: A ImageOptimizerDirectoryData object containing information about the image(s) being optimized.

Return Value

A System.Boolean value that indicates whether to cancel the optimization operation for the current image. Possible values are:

Value	Description
false	Cancel the optimization operation for the current image.
true	Continue normally.

This method will be called to provide the user information about the image(s) being optimized, such as the percent completion for the current image being optimized, and the percent completion for all files being optimized.

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

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";
}

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

Reference

ImageOptimizerDirectory Members
Leadtools.ImageOptimization Namespace