>> >Actually vcx's are class libararies that store classes. And classes are a
>> must if you do OOP. In VFP you should subclass the base classes of
>> everything and then subclass those for each application for a start. Read
>> Arnon's article on OOP in the VFUG newsletter section.
>>
>> SO OOP is like clicking on a gif in netscape that points to
>> something further? Is that what it can be compared to?
>no that is hyper-linking
>
>OO means that when you look on something you don't seperate it into data and procedure
>you look at it as a whole (as an object)
>you have classes which are abstract representation of object groups and each class has
>states and operations
>
>for example a pen can be considered an object - it has states e.g. full of ink or empty
>and it has operations like writing and chanign fill
>
>now there are 3 basic issues that makes a language OO
>encapsulation - information hiding , basicallly each class should hide at least one
>concept from the rest of the "world" and this gives yo a kind f black box approach to
>object - once you have them debugged you don't have to worry about what's goig inside
>
>the there inheritance - you can create new classes which are based on the classes you
>already made the new classes will inherit the charetaristics of your parent classes - you
>will only have to overwrite the things wich are diffent e.g.
>from the pen class we can create subclasses for fountain pens which still serves the same
>functionality but has some different properties
>
>another aspect of OO is polymorphism that is oneentity can have many forms
>this lets you call methods with the same name in different objects and the object will
>know what to do
>if we haev a shape class from which we craeated a circle sub-class and a rectangle
>subclass
>we can call the draw method of both objects (I consider an object an instantiation of the
>class) and each will do thier specific task
>
>this is only a very basic explanation of the basic OO charectaristics you should
>probably read some more on O in general and on OO in VFP
>
>Arnon
I'd like to get my hands on some example code and see how this concept works. Does it complicate an app?