KernelType Property

Summary

Gets the type of the LEADTOOLS kernel.

Syntax

Objective-C

C++/CLI

Java

Python

public static RasterKernelType KernelType { get; }

+ (LTRasterKernelType)kernelType

public static RasterKernelType getKernelType();

public: 
static property RasterKernelType KernelType { 
   RasterKernelType get(); 
}

KernelType # get  (RasterSupport)

Property Value

A RasterKernelType enumeration member indicating the LEADTOOLS kernel type.

Remarks

The following table describes the types of LEADTOOLS kernels:

Kernel	Description
Release	This is the Release kernel.
Nag	This is a special build of the kernel, which has specialty features (such as Document Imaging and Medical Imaging) unlocked. This kernel is provided to Document and Medical imaging customers, and displays a "nag" message during execution. To remove the nag, you must sign a royalty agreement. For more information, contact sales@leadtools.com.
Evaluation	This is the Evaluation kernel, which has all features unlocked, but displays an "eval" message during execution. This kernel will also expire.

LEADTOOLS Kernel Dependency

LEADTOOLS Kernel DLL has a dynamic runtime dependency on SQLite that is only needed when using a LEADTOOLS Runtime License that enables Local Use-based Logging.

Operating System	Platforms	Runtime Kernel Dependency	Kernel Dependency Installation
Windows	C DLL	`ltsqlite?.dll`	Installed with LEADTOOLS
	.NET Framework
	.NET 6+
	Java
	Javascript
	Python
	Xamarin
	MAUI

Linux	C\C++	`libsqlite3.so.0`	Installed by the user
	.NET 6+
	Java
	Javascript
	Python
	Xamarin

macOS	Xcode	`libsqlite3.dylib`	Installed by the user
	.NET 6+
	Java
	Javascript
	Python
	Xamarin
	MAUI

Example

This example will check the LEADTOOLS kernel type and whether it has expired

Java

using Leadtools; 
 
 
public void LeadtoolsKernelExample() 
{ 
	// show current kernel 
	switch (RasterSupport.KernelType) 
	{ 
		case RasterKernelType.Release: 
			Console.WriteLine("Release kernel"); 
			break; 
 
		case RasterKernelType.Evaluation: 
			Console.WriteLine("Evaluation kernel"); 
			// show if the kernel has expired 
			if (RasterSupport.KernelExpired) 
				Console.WriteLine("Evaluation kernel has expired"); 
			else 
				Console.WriteLine("Evaluation kernel has not expired yet"); 
			break; 
	} 
}

 
import java.io.File; 
import java.io.FileInputStream; 
import java.io.IOException; 
import java.io.InputStream; 
import java.nio.file.Files; 
import java.nio.file.Paths; 
 
import org.junit.*; 
import org.junit.Test; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
import static org.junit.Assert.*; 
 
import leadtools.*; 
 
 
public void kernelExpiredExample() throws IOException { 
   Platform.setLibPath("C:\\LEADTOOLS23\\Bin\\CDLL\\x64"); 
   Platform.loadLibrary(LTLibrary.LEADTOOLS); 
   final String licensePath = "C:\\LEADTOOLS23\\Support\\Common\\License\\LEADTOOLS.LIC"; 
   final String myDevKey = Files.readString(Paths.get(licensePath + ".KEY")); 
 
   RasterSupport.setLicense(licensePath, myDevKey); 
 
   switch (RasterSupport.getKernelType()) { 
      case RELEASE: 
         assertTrue("Kernel is not the release version.", RasterSupport.getKernelType() == RasterKernelType.RELEASE); 
         System.out.println("Kernel is the release version."); 
         break; 
      case EVALUATION: 
         assertTrue("Kernel is not a release or evaluation version.", RasterSupport.getKernelType() == RasterKernelType.EVALUATION); 
         System.out.println("Kernel is the evaluation version."); 
 
         System.out.print(RasterSupport.getKernelExpired()); 
         assertTrue("Kernel has expired.", !RasterSupport.getKernelExpired()); 
         System.out.println("Evaluation kernel has not expired yet."); 
         break; 
      default: 
         System.out.println("Kernel is neither a release nor evaluation version. Something is likely wrong with the provided path."); 
   } 
}

Requirements

Target Platforms

Reference

RasterSupport Class

RasterSupport Members

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Help Version 23.0.2024.2.29

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