DiskMemory Property

Summary

Gets or sets a value indicating whether to use disk memory when loading an image.

Syntax

Objective-C

C++/CLI

Java

Python

public bool DiskMemory { get; set; }

@property (nonatomic, assign) BOOL diskMemory;

public boolean getDiskMemory() 
public void setDiskMemory(boolean value)

public: 
property bool DiskMemory { 
   bool get(); 
   void set (    bool ); 
}

DiskMemory # get and set (CodecsLoadOptions)

Property Value

Value	Description
true	To load the image using disk memory.
false	To not load the image using disk memory. The default value is false.

Remarks

When the value of this property is true, the image is stored in disk and not in conventional memory.

Example

Java

using Leadtools; 
using Leadtools.Codecs; 
 
using Leadtools.ImageProcessing.Core; 
using Leadtools.Pdf; 
 
 
public void DiskMemoryExample() 
{ 
   RasterCodecs codecs = new RasterCodecs(); 
   string fileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"); 
   // first, load the image using the default 
   RasterImage image = codecs.Load(fileName); 
 
   // make sure the image uses conventional memory 
   if (image.IsConventionalMemory) 
      Debug.WriteLine("This image uses conventional memory"); 
   else 
      Debug.WriteLine("This should not happen!!"); 
 
   image.Dispose(); 
 
   // now, load the same image this time using disk memory 
   codecs.Options.Load.DiskMemory = true; 
   codecs.Options.Load.NoDiskMemory = false; 
   codecs.Options.Load.NoTiledMemory = false; 
   codecs.Options.Load.TiledMemory = false; 
   image = codecs.Load(fileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1); 
   codecs.Options.Load.Reset(); 
 
   // make sure the image uses unmanaged memory 
   if (image.IsDiskMemory) 
      Debug.WriteLine("This image uses disk memory"); 
   else 
      Debug.WriteLine("This should not happen!!"); 
 
   // Clean up 
   image.Dispose(); 
   codecs.Dispose(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

 
import java.io.File; 
import java.io.IOException; 
import java.net.URI; 
import java.net.URISyntaxException; 
import java.nio.file.Paths; 
 
import org.junit.*; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
import static org.junit.Assert.*; 
 
import leadtools.*; 
import leadtools.codecs.*; 
import leadtools.imageprocessing.core.MinMaxBitsCommand; 
 
 
public void codecsDiskMemoryExample() { 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
   RasterCodecs codecs = new RasterCodecs(); 
   String fileName = combine(LEAD_VARS_IMAGES_DIR, "barcode1.tif"); 
 
   // first, load the image using the default 
   RasterImage image = codecs.load(fileName); 
 
   // make sure the image uses conventional memory 
   if (image.isConventionalMemory()) 
      System.out.println("This image uses conventional memory"); 
   else 
      System.out.println("This should not happen!!"); 
 
   image.dispose(); 
 
   // now, load the same image this time using disk memory 
   codecs.getOptions().getLoad().setDiskMemory(true); 
   codecs.getOptions().getLoad().setNoDiskMemory(false); 
   codecs.getOptions().getLoad().setNoTiledMemory(false); 
   codecs.getOptions().getLoad().setTiledMemory(false); 
   image = codecs.load(fileName, 0, CodecsLoadByteOrder.BGR_OR_GRAY, 1, 1); 
   codecs.getOptions().getLoad().reset(); 
 
   // make sure the image uses unmanaged memory 
   if (image.isDiskMemory()) 
      System.out.println("This image uses disk memory"); 
   else 
      System.out.println("This should not happen!!"); 
 
   String outputFileName = combine(LEAD_VARS_IMAGES_DIR, "allocate_image.tif"); 
   codecs.save(image, outputFileName, RasterImageFormat.TIF, 8, 1, image.getPageCount(), 1, 
         CodecsSavePageMode.OVERWRITE); 
 
   assertTrue("File unsuccessfully saved to " + outputFileName, (new File(outputFileName)).exists()); 
   System.out.printf("File successfully saved to %s%n", outputFileName); 
 
   // Clean up 
   image.dispose(); 
   codecs.dispose(); 
}

Requirements

Target Platforms

Reference

CodecsLoadOptions Class

CodecsLoadOptions Members

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Help Version 23.0.2024.2.29

Leadtools.Codecs Assembly

Introduction

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Namespaces

Leadtools.Codecs Namespace

Assemblies