Classes And Objects by George Hernandez

If you're new to objects, you may want to see my article on Objects.

Here is the basic concept of classes and objects phrased in different ways:

An object is an instance of a particular class.
Classes are templates for objects.

Here is another way to look at the same topic:

A variable (EG: strName) can be created for an instance of a data type (EG: String). This is a scalar variable and it points to a memory space that is formatted for holding that type of data.
A variable (EG: txtTextBox) can be created for an instance of a class (EG: TextBox). This is an object variable and it points to a memory space that can accommodate a component which can encapsulate data (in properties), functions (called methods), detect events, and even its own child objects.

Nearly everything in VB (and Windows) utilizes the class and object model. While a lot can be accomplished with just the classes that come in the usual VB Toolbox, even more can be accomplished by creating your own classes.

Page Modified: (Hand noted: 2007-09-20 21:13:44Z) (Auto noted: 2007-11-17 06:36:55Z)