Count Property

Summary

Gets the number of elements.

Syntax

Objective-C

C++/CLI

Java

Python

public int Count { get; }

@property (nonatomic, assign, readonly) NSUInteger count;

public int getCount()

public: 
property int Count { 
   int get(); 
}

Count # get  (CodecsEnumTagsEventArgs)

Property Value

The number of elements of type MetadataType. Note that this is not the same as the number of bytes. For example, if Countis 10 and MetadataType is RasterTagMetadataDataType.Int32, you will need 10 x 4 = 40 bytes to read the tag data. The default value is 0.

Example

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Color; 
using Leadtools.Svg; 
 
 
string tagsFileName; 
IList<RasterTagMetadata> myTags; 
 
void EnumTagsExample(string srcFileName, string destFileName) 
{ 
   RasterCodecs codecs = new RasterCodecs(); 
 
   tagsFileName = srcFileName; 
   myTags = new List<RasterTagMetadata>(); 
 
   codecs.TagFound += new EventHandler<CodecsEnumTagsEventArgs>(codecs_TagFound); 
   codecs.EnumTags(srcFileName, 1); 
   codecs.TagFound -= new EventHandler<CodecsEnumTagsEventArgs>(codecs_TagFound); 
 
   // We read all the tags now, save them to the file 
   Debug.WriteLine("{0} tags read, saving them to the destination file", myTags.Count); 
   codecs.WriteTags(destFileName, 1, myTags); 
 
   // Clean up 
   codecs.Dispose(); 
} 
 
void codecs_TagFound(object sender, CodecsEnumTagsEventArgs e) 
{ 
   Debug.WriteLine("Tag: Id={0}, Count={1}, Type={2}, Cancel={3}", e.Id, e.Count, e.MetadataType, e.Cancel); 
 
   // Read this tag from the file and add it to our collection 
   RasterCodecs codecs = sender as RasterCodecs; 
   RasterTagMetadata tag = codecs.ReadTag(tagsFileName, 1, e.Id); 
   myTags.Add(tag); 
}

 
import java.io.*; 
import java.net.*; 
import java.nio.file.Paths; 
import java.util.*; 
import java.time.Instant; 
import java.time.Duration; 
 
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.codecs.RasterCodecs.FeedCallbackThunk; 
import leadtools.drawing.internal.*; 
import leadtools.imageprocessing.*; 
import leadtools.imageprocessing.color.ChangeIntensityCommand; 
import leadtools.svg.*; 
 
 
String tagsFileName; 
RasterCollection<RasterTagMetadata> myTags; 
 
public void enumTagsExample() throws IOException { 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
   String srcFileName = combine(LEAD_VARS_IMAGES_DIR, "ocr1-4.tif"); 
   RasterCodecs codecs = new RasterCodecs(); 
 
   tagsFileName = srcFileName; 
   myTags = new RasterCollection<RasterTagMetadata>(); 
 
   ILeadStream srcFileStream = LeadStreamFactory.create(srcFileName); 
   codecs.addTagFoundListener(codecsTagFound); 
   codecs.enumTags(srcFileStream, 1); 
   codecs.removeTagFoundListener(codecsTagFound); 
 
   // We read all the tags now, save them to the file 
   System.out.println(myTags.size() + " tags read, saving them to the destination file"); 
   ILeadStream destFileStream = LeadStreamFactory.create(srcFileName); 
   codecs.writeTags(destFileStream, 1, myTags); 
 
   // Clean up 
   destFileStream.close(); 
   srcFileStream.close(); 
   codecs.dispose(); 
} 
 
CodecsTagFoundListener codecsTagFound = new CodecsTagFoundListener() { 
 
   @Override 
   public void onTagFound(CodecsEnumTagsEvent e) { 
      System.out.println("Tag: Id=" + e.getId() + ", Count=" + e.getCount() + ", Type=" + e.getMetadataType() 
            + ", Cancel=" + e.getCancel()); 
 
      // Read this tag from the file and add it to our collection 
      RasterCodecs codecs = (RasterCodecs) e.getSource(); 
      ILeadStream ls = LeadStreamFactory.create(tagsFileName); 
      RasterTagMetadata tag = codecs.readTag(ls, 1, e.getId()); 
      myTags.add(tag); 
      try { 
         ls.close(); 
      } catch (IOException e1) { 
         e1.printStackTrace(); 
      } 
   } 
 
};

Requirements

Target Platforms

Reference

CodecsEnumTagsEventArgs Class

CodecsEnumTagsEventArgs Members

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Help Version 23.0.2024.2.29

Leadtools.Codecs Assembly

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