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ImageOptimizerDirectory Delegate

Summary
Called during the directory optimization operation to give the user information about the image(s) being optimized.

Syntax
C#
C++/CLI
Python
public delegate bool ImageOptimizerDirectory( 
   ImageOptimizerDirectoryData data 
) 
public delegate bool ImageOptimizerDirectory(  
   ImageOptimizerDirectoryData^ data 
) 
def ImageOptimizerDirectory(self,data): 
# data : ImageOptimizerDirectoryData 

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.
Remarks

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.

Example
C#
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageOptimization; 
 
 
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:\LEADTOOLS22\Resources\Images"; 
} 
Requirements

Target Platforms

See Also

Reference

ImageOptimizerDirectory Members

Leadtools.ImageOptimization Namespace

Help Version 22.0.2023.3.31
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.

Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.