Syntax
Parameters
outputDirectory
A System.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 System.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.
Example
This example will optimize all Jpg files found in a specific directory, and save them into a separate folder
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:\LEADTOOLS21\Resources\Images";
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageOptimization
'''Imports Leadtools.Support.Examples
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:\LEADTOOLS21\Resources\Images"
End Class
