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 FiveWin and Windows API Relationship
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   Programming in Windows is a very difficult task. Windows is completely
   different from DOS and it has so many new features that it is virtually
   impossible for any programmer to remember them all.

   For someone new to Graphical User Interfaces, the learning curve of Windows
   is about two years, just to manage the basic tasks.  Previous C language
   programming is also required, which means add one more year C language
   training.

   The traditional Windows programming way is clearly represented by Charles
   Petzold 'Programming in Windows' book. The Petzold's way implies using
   C language and the Windows SDK, the Software Development Kit provided by
   Microsoft.

   With the advantage of Object Oriented technology, mainly based on
   C++, another way of developing Windows applications appeared which is
   clearly represented by Paul Dilascia -Windows++ book, Andrew Schulman
   series, Addison Wesley ISBN 0-201-60891-X-. The Dilascia's way implies
   using C++ language and it goes through a process of completely redesigning
   the Windows paradigm, converting it into a real Object Oriented environment.

   Thanks to the internal Object Oriented architecture of Clipper 5 and to
   the OOPS extensions provided by our OBJECTS.lib library, included with
   FiveWin, we have developed a powerful approach to programming in Windows
   based on Paul Dilascia's main ideologies.

   In this chapter we are going to take a look at the design of the Object
   Oriented architecture of FiveWin, the connection between the Windows API
   and the Object Oriented Clipper kernel, so you will clearly understand
   all the processes that are involved and how you can easily create new
   Classes connecting with the Windows API.