Contents
Issue 59, July 2000

• News
  Keep up with all that’s new.

• Effective Delphi Class Engineering Part 2: Welcome To The Machine
  David Baer continues his series on practical object orientation by putting Delphi’s object machinery under a magnifying glass. He examines topics such as memory management, method calling, protocols and other compiler- related issues.

• Under Construction: Delphi 5 Active Server Objects, 2
  Bob Swart completes his coverage of developing Active Server Objects by looking at the way in which WebBroker and InternetExpress can be used by an Active Server Object.

• Application Architecture
  Architecture is a fascinating subject, thinks Max Rahder. An application architecture is an infrastructure of classes which makes it easier to extend and modify a program, by retaining core functionality in the architecture. Max discusses this topic using an example application. Dramatically reduced development and maintenance costs is the promise.

• One Last Compile...
  It works fine here

• Algorithms Alfresco: Arrrgh Essay
  Julian Bucknall bravely steps into the arena to explain how the RSA encryption algorithm works. RSA is an example of public key encryption: data are encrypted using a freely available public key but can only be decrypted using a secret key, known only to the recipient of the data.

• Enhanced TRichEdit Controls
  Ever wondered why you can’t put formatted text into a TRichEdit control at design-time using the property editor? Brian Long explains the reasons and develops an enhanced version of the control which answers this need.

• Beating The System: TAR-geting Linux
  Dave Jewell’s pun-making machine is in full swing this month as he provides a useful introduction to getting your code ready for Kylix (codename for Borland’s eagerly-awaited Delphi for Linux) by way of a cross-platform TAR file utility.

• IBSec: Securing InterBase Network Traffic On The Fly
  Jani Järvinen thinks InterBase is a great DBMS, but it has one flaw: all the data passing between server and client is open for all the world to see (not so good on the internet, for example). To overcome this he develops a utility which seamlessly encrypts and decrypts all InterBase network traffic.

• The Delphi Clinic
  Brian Long with more answers to your queries, including: overcoming an InterBase Express login problem, translating strings to numbers, using typed constants, editing ListView items, using and amending Code Templates, persistent runtime column data, understanding Delphi grammar and how to access memo and BLOb fields.