A note about the future of ecsoft2.org

ecsoft2.org runs on software (Drupal 7 and PHP 7.4) that reached its end of life years ago and no longer receives security updates. Keeping the site online safely is getting harder.

Giving it a future means migrating it to a current platform — and that is only worth doing if people still use it and want to help keep it alive.

If you care about ecsoft2.org, as a user, a contributor, or someone willing to lend a hand, please ggambatiscali [dot] it (get in touch) by January 31, 2027.

If no one comes forward by then, the site will be turned into a read-only archive, so that its content stays available.

OS/2 Presentation Manager Programming - Paul W. Cheatham, David E. Reich, Robert F.G. Robinson

OS/2 is an impressive achievement on the part of the IBM development team. It is an operating system that overcomes many of the limitations of DOS, adding a friendly user interface (the Presentation Manager) as well as providing functions to programs to make them do more, perform better, and even use less memory with dynamic linking.
Along with all this functionality comes a great set of programming challenges. This book will help you overcome these hurdles.
Throughout this book we concentrate on the fundamentals. The OS/2 Presentation Manager is a complex system, and mastering the basic principles unlocks virtually unlimited programming possibilities. We have strategically placed program code to illustrate these fundamentals. You can use the code as the building blocks for all your programs.