1. Introduction to the Visual Basic Language and Environment
Variables
We�re now ready to attach code to our application.
As objects are added to the form, Visual Basic automatically
builds a framework of all event procedures. We simply add
code to the event procedures we want our application to respond to.
But before we do this, we need to discuss variables.
Variables are used by Visual Basic to hold information needed
by your application. Rules used in naming variables:
No more than 40 characters
They may include letters, numbers, and underscore (_)
The first character must be a letter
You cannot use a reserved word (word needed by Visual Basic)
