ExtractMessageCommand Constructor(string,string,LeadPoint)

Summary

Initializes a new ExtractMessageCommand class object with explicit parameters.

Syntax

C++/CLI

Python

public ExtractMessageCommand( 
   string password, 
   string directory, 
   LeadPoint start 
)

public: 
ExtractMessageCommand(  
   String^ password, 
   String^ directory, 
   LeadPoint start 
)

__init__(self,password,directory,start) # Overloaded constructor

Parameters

password
String that contains the password used when extracting the message from the image.

directory
String that contains the full path name of the directory in which to save the extracted file. If the extracted message is a file this parameter is used to specify the path for saving the extracted file. To save the extracted file using the original path, set this parameter to null. If the extracted message is text this parameter has no effect.

start
LeadPoint at which the message will be extracted from the image.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Effects; 
 
 
public void ExtractMessageCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg")); 
 
   // Prepare the command 
   AddMessageCommand addmessageCommand = new AddMessageCommand(); 
   addmessageCommand.Password = null; 
   addmessageCommand.Start = new LeadPoint(0, 0); 
   addmessageCommand.Message = "LEAD Technologies, Inc."; 
   // Add the above message to image in the default position and with the default password. 
   addmessageCommand.Run(image); 
 
   // Prepare the command 
   ExtractMessageCommand command = new ExtractMessageCommand(); 
 
   // set password and start properties values same as AddMessageCommand values. 
   command.Password = null; 
   command.Start = new LeadPoint(0, 0); 
   command.Directory = Path.Combine(LEAD_VARS.ImagesDir, ""); 
 
   // Extract the message from the image in the default position and with the default password. 
   command.Run(image); 
   codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24); 
 
   if (command.Message != null && command.Message.Length != 0) 
      MessageBox.Show(command.Message, "Extracted Message"); 
   else if (command.FileName != null && command.FileName.Length != 0) 
      MessageBox.Show(command.FileName, "Extracted File"); 
 
 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}

Requirements

Target Platforms

Reference

ExtractMessageCommand Class

ExtractMessageCommand Members

Overload List

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Help Version 22.0.2023.3.31

Leadtools.ImageProcessing.Effects Assembly

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