LoadOptions(Stream) Method

Summary

Loads the document options from an XML stream.

Syntax

Objective-C

C++/CLI

Java

Python

public void LoadOptions( 
   Stream stream 
)

macOS Only: 
- (BOOL)loadOptionsFromData:(NSData *)data error:(NSError **)error

public void loadOptions(InputStream stream)

public: 
void LoadOptions(  
   Stream^ stream 
)

def LoadOptions(self,stream):

Parameters

stream
A standard .NET Stream containing the options.

Remarks

This method will load the options saved to an XML stream using the SaveOptions(Stream) method.

To load and save the options to an XML disk file instead of a stream, use LoadOptions(string) and SaveOptions(string).

Saving the options to an XML file allows you to set the options the required way once and then re-use them in multiple sessions (or multiple DocumentWriter instances). Each document format supported by the LEADTOOLS Document Writer contain extra functionality and options that can be accessed with the GetOptions and SetOptions methods. For more information, refer to DocumentOptions.

The following options are saved to the XML:

Example

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Document.Writer; 
using Leadtools.Ocr; 
 
 
public void DocumentOptionsStreamExample() 
{ 
   // Use a memory stream to save the options to 
   using (var stream = new MemoryStream()) 
   { 
      // Create a new instance of the LEADTOOLS Document Writer 
      var docWriter1 = new DocumentWriter(); 
 
      // Show the default PDF and HTML options before 
      ShowMyOptions("Default options for docWriter1", docWriter1); 
 
      // Change the PDF options and HTML options 
      var pdfOptions = docWriter1.GetOptions(DocumentFormat.Pdf) as PdfDocumentOptions; 
      pdfOptions.DocumentType = PdfDocumentType.PdfA; 
      pdfOptions.ImageOverText = true; 
      docWriter1.SetOptions(DocumentFormat.Pdf, pdfOptions); 
 
      var htmlOptions = docWriter1.GetOptions(DocumentFormat.Html) as HtmlDocumentOptions; 
      htmlOptions.UseBackgroundColor = true; 
      htmlOptions.BackgroundColor = RasterColor.FromKnownColor(RasterKnownColor.LightBlue); 
      docWriter1.SetOptions(DocumentFormat.Html, htmlOptions); 
 
      // Show the options again 
      ShowMyOptions("New options for docWriter1", docWriter1); 
 
      // Save these options to the stream 
      docWriter1.SaveOptions(stream); 
      // Reset the stream back to its original position 
      stream.Position = 0; 
 
      // Create a new DocumentWriter object 
      var docWriter2 = new DocumentWriter(); 
 
      // Show its options, should be the defaults 
      ShowMyOptions("Default options for docWriter2", docWriter2); 
 
      // Load the options from the memory to this object 
      docWriter2.LoadOptions(stream); 
 
      // Show the options now, should be the saved ones 
      ShowMyOptions("Options for docWriter2 after loading from the XML file", docWriter2); 
   } 
} 
 
private void ShowMyOptions(string message, DocumentWriter docWriter) 
{ 
   Debug.WriteLine(message); 
 
   var pdfOptions = docWriter.GetOptions(DocumentFormat.Pdf) as PdfDocumentOptions; 
   Debug.WriteLine("  PDF options: "); 
   Debug.WriteLine("    DocumentType:  " + pdfOptions.DocumentType); 
   Debug.WriteLine("    FontEmbedMode: " + pdfOptions.FontEmbedMode); 
   Debug.WriteLine("    ImageOverText: " + pdfOptions.ImageOverText); 
 
   var htmlOptions = docWriter.GetOptions(DocumentFormat.Html) as HtmlDocumentOptions; 
   Debug.WriteLine("  HTML options: "); 
   Debug.WriteLine("    DocumentType:       " + htmlOptions.DocumentType); 
   Debug.WriteLine("    FontEmbedMode:      " + htmlOptions.FontEmbedMode); 
   Debug.WriteLine("    UseBackgroundColor: " + htmlOptions.UseBackgroundColor); 
   Debug.WriteLine("    BackgroundColor:    " + htmlOptions.BackgroundColor); 
   Debug.WriteLine("-------------------------"); 
}

 
import static org.junit.Assert.assertTrue; 
 
import java.io.ByteArrayInputStream; 
import java.io.ByteArrayOutputStream; 
import java.io.File; 
import java.io.IOException; 
 
import org.junit.*; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
 
import leadtools.*; 
import leadtools.codecs.*; 
import leadtools.document.writer.*; 
import leadtools.ocr.*; 
 
 
public void documentOptionsStreamExample() { 
   // Use a memory stream to save the options to 
   ByteArrayOutputStream stream = new ByteArrayOutputStream(); 
 
   // Create a new instance of the LEADTOOLS Document Writer 
   DocumentWriter docWriter1 = new DocumentWriter(); 
 
   // Show the default PDF and HTML options before 
   ShowMyOptions("Default options for docWriter1", docWriter1); 
 
   // Change the PDF options and HTML options 
   PdfDocumentOptions pdfOptions = (PdfDocumentOptions) docWriter1.getOptions(DocumentFormat.PDF); 
   pdfOptions.setDocumentType(PdfDocumentType.PDFA); 
   pdfOptions.setImageOverText(true); 
   docWriter1.setOptions(DocumentFormat.PDF, pdfOptions); 
 
   HtmlDocumentOptions htmlOptions = (HtmlDocumentOptions) docWriter1.getOptions(DocumentFormat.HTML); 
   htmlOptions.setUseBackgroundColor(true); 
   htmlOptions.setBackgroundColor(RasterColor.fromKnownColor(RasterKnownColor.LIGHT_BLUE)); 
   docWriter1.setOptions(DocumentFormat.HTML, htmlOptions); 
 
   // Show the options again 
   ShowMyOptions("New options for docWriter1", docWriter1); 
 
   // Save these options to the stream 
   docWriter1.saveOptions(stream); 
 
   // Create a new DocumentWriter object 
   DocumentWriter docWriter2 = new DocumentWriter(); 
 
   // Show its options, should be the defaults 
   ShowMyOptions("Default options for docWriter2", docWriter2); 
   ByteArrayInputStream in = new ByteArrayInputStream(stream.toByteArray()); 
 
   // Load the options from the memory to this object 
   docWriter2.loadOptions(in); 
 
   // Show the options now, should be the saved ones 
   ShowMyOptions("Options for docWriter2 after loading from the XML file", docWriter2); 
   assertTrue("Options saved incorrectly", stream.size() == 6126); 
} 
 
private void ShowMyOptions(String message, DocumentWriter docWriter) { 
   System.out.println(message); 
 
   PdfDocumentOptions pdfOptions = (PdfDocumentOptions) docWriter.getOptions(DocumentFormat.PDF); 
   System.out.println("  PDF options: "); 
   System.out.println("    DocumentType:  " + pdfOptions.getDocumentType()); 
   System.out.println("    FontEmbedMode: " + pdfOptions.getFontEmbedMode()); 
   System.out.println("    ImageOverText: " + pdfOptions.getImageOverText()); 
 
   HtmlDocumentOptions htmlOptions = (HtmlDocumentOptions) docWriter.getOptions(DocumentFormat.HTML); 
   System.out.println("  HTML options: "); 
   System.out.println("    DocumentType:       " + htmlOptions.getFormat()); 
   System.out.println("    FontEmbedMode:      " + htmlOptions.getFontEmbedMode()); 
   System.out.println("    UseBackgroundColor: " + htmlOptions.getUseBackgroundColor()); 
   System.out.println("    BackgroundColor:    " + htmlOptions.getBackgroundColor()); 
   System.out.println("-------------------------"); 
}