IsStructureSupported Property

Summary

Gets a value that determines whether the document structure is supported.

Syntax

C++/CLI

Java

Python

public bool IsStructureSupported {get;}

public:  
   property bool IsStructureSupported 
   { 
      bool get() 
   }

public boolean isStructureSupported()

IsStructureSupported # get  (LEADDocument)

Property Value

true if the document structure is supported; otherwise, false.

Remarks

Some document formats (such as PDF) supports reading the structure of the document. This includes the bookmarks and table of content.

If this is supported, then the value of IsStructureSupported will be true and the Structure property is not null and can be used.

If document structure is not supported, then the value of IsStructureSupported is false and the Structure property is null and cannot be used.

For more information, refer to DocumentStructure.

Example

Java

using Leadtools; 
using Leadtools.Caching; 
using Leadtools.Document; 
 
 
public void DocumentExample() 
{ 
   var cache = GetCache(); 
 
   var policy = new CacheItemPolicy(); 
   policy.AbsoluteExpiration = DateTime.Now + new TimeSpan(0, 0, 1); 
   policy.SlidingExpiration = new TimeSpan(0, 0, 1); 
 
   var options = new LoadDocumentOptions(); 
   options.CachePolicy = policy; 
   options.Cache = cache; 
 
   if(options.Cache == null) 
   { 
      options.Cache = DocumentFactory.Cache; 
   } 
 
   string documentId = null; 
 
   using (var document = DocumentFactory.LoadFromFile(Path.Combine(LEAD_VARS.ImagesDir, "Leadtools.pdf"), options)) 
   { 
      document.GetDocumentFileName(); 
      document.IsReadOnly = false; 
      document.AutoDeleteFromCache = false; 
      // DocumentImages reference 
      document.Images.DefaultBitsPerPixel = 24; 
 
      Console.WriteLine(document.Images.IsResolutionsSupported); 
      Console.WriteLine(document.Images.IsSvgSupported); 
 
      // Check if the document has a stream in memory 
      if (document.HasStream) 
      { 
         // Get the document stream 
         document.GetDocumentStream(); 
      } 
 
      // Indicate whether the document is using the cache or not 
      Console.WriteLine(document.HasCache); 
             
      //Indicate if the document was downloaded 
      Console.WriteLine(document.IsDownloaded); 
 
      // Gets a value that determines whether the document structure is supported 
      Console.WriteLine(document.IsStructureSupported); 
 
      // Output metadata values (DocumentMetadata reference) 
      Console.WriteLine(document.Metadata.Values.Count); 
 
      // Get the Mime type of the document 
      Console.WriteLine(document.MimeType); 
 
      // Parse document structure data (DocumentStructure reference) 
      foreach(DocumentBookmark bookmark in document.Structure.Bookmarks) 
      { 
         bookmark.Title = null; 
         bookmark.FontStyles = DocumentFontStyles.Normal; 
         document.Structure.Bookmarks.Add(bookmark); 
         Console.WriteLine(bookmark.Children); 
         Console.WriteLine(bookmark.Target); 
         Console.WriteLine(document.Structure.Bookmarks.Count); 
         Console.WriteLine(document.Structure.IsParsed); 
         Console.WriteLine(document.Structure.ParseBookmarks); 
      } 
 
      document.Structure.Parse(); 
 
      // Get the document URI 
      Console.WriteLine(document.Uri); 
 
      // Get each DocumentPage object (DocumentPage & DocumentPages reference) 
      foreach (DocumentPage page in document.Pages) 
      { 
         // Get the page as a raster image at the specified resolution 
         page.GetImage(0); 
         // Get the page as an Svg with specified options 
         page.GetSvg(null); 
         // Flip this page horizontally 
         page.Reverse(); 
         // Use this method to add an array of links for this page 
         page.SetLinks(null); 
         page.IsLinksModified = false; 
         page.Resolution = 0; 
         page.ViewPerspective = RasterViewPerspective.TopLeft; 
         page.SetLinks(page.GetLinks()); 
         Console.WriteLine($"Page Number: {page.PageNumber}, Original PageNumber: {page.OriginalPageNumber}, Size of the page: {page.Size}"); 
      } 
 
      PrintOutDocumentInfo(document); 
 
      documentId = document.DocumentId; 
      document.SaveToCache(); 
   } 
 
   System.Threading.Thread.Sleep(2000); 
 
   var loadFromCacheOptions = new LoadFromCacheOptions(); 
   loadFromCacheOptions.Cache = cache; 
   loadFromCacheOptions.DocumentId = documentId; 
   using (var document = DocumentFactory.LoadFromCache(loadFromCacheOptions)) 
   { 
      if (null == document) 
      { 
         Console.WriteLine("Cached document was expired and deleted!"); 
      } 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

 
import java.io.File; 
import java.io.FileInputStream; 
import java.io.FileNotFoundException; 
import java.io.IOException; 
import java.io.InputStream; 
import java.net.URI; 
import java.net.URISyntaxException; 
import java.util.Calendar; 
 
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.caching.*; 
import leadtools.document.*; 
 
 
public void documentExample() throws InterruptedException, IOException { 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
 
   FileCache cache = getCache(); 
 
   CacheItemPolicy policy = new CacheItemPolicy(); 
   Calendar nowPlus = Calendar.getInstance(); 
   nowPlus.add(Calendar.SECOND, 1); 
   policy.setAbsoluteExpiration(nowPlus.getTime()); 
 
   policy.setSlidingExpiration(1); 
 
   LoadDocumentOptions options = new LoadDocumentOptions(); 
   options.setCachePolicy(policy); 
   options.setCache(cache); 
 
   if (options.getCache() == null) { 
      options.setCache(DocumentFactory.getCache()); 
   } 
 
   LEADDocument document = DocumentFactory.loadFromFile(combine(LEAD_VARS_IMAGES_DIR, "Leadtools.pdf"), options); 
 
   document.getDocumentFileName(); 
   document.setReadOnly(false); 
   document.setAutoDeleteFromCache(false); 
   // DocumentImages reference 
   document.getImages().setDefaultBitsPerPixel(24); 
 
   System.out.println(document.getImages().isResolutionsSupported()); 
   System.out.println(document.getImages().isSvgSupported()); 
 
   // Check if the document has a stream in memory 
   if (document.hasStream()) { 
      // Get the document stream 
      document.getDocumentStream(); 
   } 
 
   // Indicate whether the document is using the cache or not 
   System.out.println(document.hasCache()); 
 
   // Indicate if the document was downloaded 
   System.out.println(document.isDownloaded()); 
 
   // Gets a value that determines whether the document structure is supported 
   System.out.println(document.isStructureSupported()); 
 
   // Output metadata values (DocumentMetadata reference) 
   System.out.println(document.getMetadata().values().size()); 
 
   // Get the Mime type of the document 
   System.out.println(document.getMimeType()); 
 
   // Parse document structure data (DocumentStructure reference) 
   for (DocumentBookmark bookmark : document.getStructure().getBookmarks()) { 
      bookmark.setTitle(null); 
      bookmark.setFontStyles(DocumentFontStyles.NORMAL); 
      document.getStructure().getBookmarks().add(bookmark); 
      System.out.println(bookmark.getChildren()); 
      System.out.println(bookmark.getTarget()); 
      System.out.println(document.getStructure().getBookmarks().size()); 
      System.out.println(document.getStructure().isParsed()); 
      System.out.println(document.getStructure().getParseBookmarks()); 
   } 
 
   document.getStructure().parse(); 
 
   // Get the document URI 
   System.out.println(document.getUri()); 
 
   // Get each DocumentPage object (DocumentPage & DocumentPages reference) 
   document.setCacheOptions(document.getCacheOptions()); 
   for (DocumentPage page : document.getPages()) { 
      assertTrue(document != null); 
      System.out.println("Document created successfully"); 
 
      // Get the page as a raster image at the specified resolution 
      page.getImage(0); 
      // Get the page as an Svg with specified options 
      page.getSvg(null); 
      // Flip this page horizontally 
      page.reverse(); 
      // Use this method to add an array of links for this page 
      page.setLinks(null); 
      page.setLinkedModified(false); 
      page.setResolution(0); 
      page.setViewPerspective(RasterViewPerspective.TOP_LEFT); 
      page.setLinks(page.getLinks()); 
      System.out.println("Page Number: " + page.getPageNumber() + ", Original PageNumber: " 
            + page.getOriginalPageNumber() + ", Size of the page: " + page.getSize() + ""); 
   } 
 
   printOutDocumentInfo(document); 
   document.saveToCache(); 
   document.dispose(); 
}

Requirements

Target Platforms

Reference

LEADDocument Class

LEADDocument Members

Leadtools.Document Namespace

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Help Version 23.0.2024.2.29

Leadtools.Document Assembly

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Leadtools.Document Namespace

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