Getting Started
***************

   Note: This documentation does not cover all concepts of MUI
programming in detail. It's important that you also read the
accompanying per class autodocs and have a look at the supplied demo
programs!

Object Oriented Programming
===========================

   The MUI system is based on BOOPSI, the Basic Object Oriented
Programming System for Intuition. Understanding MUI and understanding
this documentation requires at least a little knowledge about the
concepts of object oriented programming, about classes, objects,
methods and attributes. An absolutely sufficient introduction to these
topics can be found in the "Libraries" part of the "ROM Kernel
Reference Manuals" or in several Amiga mail articles.

   When talking about BOOPSI, most people automatically think of BOOPSI
images and BOOPSI gadgets as part of the Amiga operating system.
However, BOOPSI for itself is just a system for object oriented
programming. One could e.g. have object oriented spread sheet software
or object oriented file systems based on BOOPSI, intuition's builtin
classes (gadgetclass, imageclass) are just two from thousands of
possibilities.

   The MUI system also uses BOOPSI only as a base for object oriented
programming. Thus, MUI classes are all subclasses of BOOPSI's rootclass
and have nothing in common with the system supplied gadget or image
classes. Unfortunately, Commodore missed some very important topics
when designing these classes, disabling them for use in automatic
layout systems such as MUI. Anyway, MUI features an interface to
BOOPSI's gadgetclass and allows using already available gadgets (e.g.
the Kick 3.x colorwheel) in MUI applications.