extern "C" __declspec( dllimport ) __stdcall BOOL EP_RegLoadAndCheckKey();

function EP_RegLoadAndCheckKey : boolean; stdcall;

Public Declare Function EP_RegLoadAndCheckKey Lib "enigma_ide.dll" () As Boolean

public class Enigma_IDE
{
    [DllImport("enigma_ide.dll", CallingConvention = CallingConvention.StdCall)]
    public static extern bool EP_RegLoadAndCheckKey();
}

uses 
  enigma_ide; // the module contains a definitions of Enigma API

function IsRegistered : boolean;
begin
  Result := fasle;
  if EP_RegLoadAndCheckKey then // read and check the registration information
  begin
    MessageBox(0, 'The Application is registered!', 'Application', 0); 
    Result := true; // return successful result
  end else
    MessageBox(0, 'The Application is NOT registered!!!', 'Application', 0); 
end;

#include "include/enigma_api.h" // the module contains a definitions of Enigma API
#pragma link "include/enigma_ide.lib"

BOOL IsRegistered()
{
  if (EP_RegLoadAndCheckKey) // read and check registration information
  {
    MessageBox(0, "The Application is registered!", "Application", 0);
    return TRUE; // return successful result
  } else
  {
    MessageBox(0, "The Application is NOT registered!!!", "Application", 0);
  }
  return FALSE;
}