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StopOptimizedLoad Method

Summary

Indicates the end of a section of code using the same source file.

Syntax

WinRT C#

C++

public void StopOptimizedLoad()

Public Sub StopOptimizedLoad()

public void StopOptimizedLoad()

 function Leadtools.Codecs.RasterCodecs.StopOptimizedLoad()

public: 
void StopOptimizedLoad();

Remarks

Speeds up multi-page load Call this method when you have finished loading or converting from the same source file (or when the source file contents have changed). Call StopOptimizedLoad after calling StartOptimizedLoad.

For more information, refer to Using the OptimizedLoad Functions to Speed Loading Large Files.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Color; 
using Leadtools.Svg; 
using LeadtoolsExamples.Common; 
 
public void OptimizedLoadExample() 
{ 
   using (RasterCodecs codecs = new RasterCodecs()) 
   { 
      // The speed improvement is most noticeable in source files with many pages 
      string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "MultiPage.pdf"); 
 
      // indicate the start of a loop from the same source file 
      codecs.StartOptimizedLoad(); 
 
      for (int i = 1; i < 10; i++) 
      { 
         using (RasterImage image = codecs.Load(srcFileName, i)) 
         { 
            string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "out_" + i.ToString() + ".jpg"); 
            // Save as the destination image 
            codecs.Save(image, destFileName, RasterImageFormat.Jpeg411, 24); 
         } 
      } 
 
      // Indicate that I finished using the same source file. 
      codecs.StopOptimizedLoad(); 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
}

Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing 
Imports Leadtools.ImageProcessing.Color 
Imports Leadtools.Drawing 
Imports Leadtools.Svg 
 
Public Sub OptimizedLoadExample() 
   Using codecs As RasterCodecs = New RasterCodecs() 
 
      ' The speed improvement is most noticeable in source files with many pages 
      Dim srcFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "MultiPage.pdf") 
 
      ' indicate the start of a loop from the same source file 
      codecs.StartOptimizedLoad() 
 
      For i As Integer = 1 To 10 
         Using image As RasterImage = codecs.Load(srcFileName, i) 
            Dim destFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "out_" + i.ToString() + ".jpg") 
            ' Save as the destination image 
            codecs.Save(image, destFileName, RasterImageFormat.Jpeg411, 24) 
         End Using 
      Next 
 
      ' Indicate that I finished using the same source file. 
      codecs.StopOptimizedLoad() 
   End Using 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class

Requirements

Target Platforms

Reference

RasterCodecs Class

RasterCodecs Members

Help Version 19.0.2017.10.27

Leadtools.Codecs Assembly

Introduction

Getting Started

Namespaces

Leadtools.Codecs Namespace

Assemblies