GetTotalPages(Uri) Method

Summary

Gets the number of pages of an image URI.

Syntax

C++/CLI

Python

public int GetTotalPages( 
   Uri uri 
)

public: 
int GetTotalPages(  
   Uri^ uri 
)

def GetTotalPages(self,uri):

Parameters

uri
The Uri containing the image data.

Return Value

Number of pages in the specified file.

Remarks

GetInformation and GetFormat use GetInformation internally. So, if more information about the image is required, it is recommended to call GetInformation directly and obtain the data once.

Example

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Color; 
using Leadtools.Svg; 
 
 
private static void LoadPagesFromUriTest(Uri uri) 
{ 
   // Create a new RasterCodecs instance 
   using (RasterCodecs rasterCodecs = new RasterCodecs()) 
   { 
      rasterCodecs.GetFormat(uri); 
      // Get the number of pages 
      int pageCount = rasterCodecs.GetTotalPages(uri); 
      Debug.WriteLine("Number of pages in the file is {0}", pageCount); 
 
      // Load all pages 
      for (int pageNumber = 1; pageNumber <= pageCount; pageNumber++) 
      { 
         using (RasterImage rasterImage = rasterCodecs.Load(uri, pageNumber)) 
         { 
            Debug.WriteLine("Page {0} loaded", pageNumber); 
         } 
      } 
   } 
}

 
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.*; 
 
 
public void loadPagesFromUriExample() throws URISyntaxException { 
   final String address = "https://demo.leadtools.com/images/pdf/leadtools.pdf"; 
   URI uri = new URI(address); 
   ILeadStream uriStream = LeadStreamFactory.create(uri); 
   RasterCodecs rasterCodecs = new RasterCodecs(); 
   rasterCodecs.getFormat(uriStream); 
 
   // Get the number of pages 
   int pageCount = rasterCodecs.getTotalPages(uriStream); 
   System.out.printf("Number of pages in the file is %s%n", pageCount); 
 
   // Load all pages 
   for (int pageNumber = 1; pageNumber <= pageCount; pageNumber++) { 
      System.out.printf("Page %s loaded%n", pageNumber); 
   } 
}

Requirements

Target Platforms

Reference

RasterCodecs Class

RasterCodecs Members

Overload List

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Help Version 23.0.2024.2.29

Leadtools.Codecs Assembly

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