Event Driven Programming Terms

Event Driven Programming

Event driven programming has a number of characteristics which makes it different from other types of Programming methodologies. Event driven programming is driven by triggered events which run blocks (subroutines) of code.

Forms

Forms are used to hold all the controls the programmer used to create the program. Event driven programming languages use Trigger Functions to select which event handler to run according to which event occurred. Forms are a major feature of most event driven programming environments, as they are what the user sees when the program runs.

Subroutine�s and Procedures

A Subroutine is a self-contained section of program known as a procedure. Subroutines in VB.NET have Sub and the name of the subroutine in their first line with End Sub as their last line.

GUI (graphical user interface)

GUI stands for graphical user interface, meaning that the operating system can be controlled with a mouse by clicking on buttons, menus or similar objects. Most modern programs have forms with controls on them that show when the program runs. Controls are objects on the form such as a label, button, and check box.

The Event Loops

The Event Loops are needed to keep testing the user interface to detect whether anything has happened.