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 _
) 

Visual Basic (Usage)

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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
) 

Parameters

codecs

The RasterCodecs object used internally in the optimization operation to load an image and optimize it.

inputDirectory

A String that contains the full directory path to the images to be optimized.

outputDirectory

A String that contains the full directory path to be used when saving the optimized image(s).

options

The options used in the optimization process.

fileExtensions

A String that contains the extensions of the files to be optimized. For example:

• To optimize all "gif" and "jpeg" files, fileExtensions should be set to "*.gif;*.jpeg".
• To optimize all the supported files found in the inputDirectory directory, regardless of their extensions, fileExtensions should be set to "*.*".

includeSubDirectories

true to optimize sub-directories, false otherwise.

directoryCallback

Optional callback function that provides user information about the image(s) being optimized, such as the completion percentage for the current image being optimized, and the completion percentage for all files being optimized.

This example will optimize all Jpg files found in a specific directory, and save them into a separate folder

Visual Basic

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Private _imageNo As Integer Public Sub TestDirImageOptimizer()    _imageNo = 0    ' Initialize the RasterCodecs class    RasterCodecs.Startup()    Dim codecs As RasterCodecs = New RasterCodecs()    ' The input and output directories    Dim inputDirectory As String = LeadtoolsExamples.Common.ImagesPath.Path    Dim outputDirectory As String = LeadtoolsExamples.Common.ImagesPath.Path + "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.    RasterCodecs.Shutdown() 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

C#

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int _imageNo;    public void TestDirImageOptimizer( )  {     _imageNo = 0;       // Initialize the RasterCodecs class     RasterCodecs.Startup();     RasterCodecs codecs = new RasterCodecs();       // The input and output directories     string inputDirectory = LeadtoolsExamples.Common.ImagesPath.Path;     string outputDirectory = LeadtoolsExamples.Common.ImagesPath.Path + "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.     RasterCodecs.Shutdown();  }    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;  }

For more information, refer to Image Optimization Using The ImageOptimizer Class.

Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

Reference