Write Your First Visual Basic Program
Lesson 1
Learning about
Events
Visual Basic is "Event Driven" language.
What
does it mean?
Everything that happening, launch an event.
You've moved
the mouse? The "MouseMove" event has been launched.
You've pressed a key? The
"KeyPress" event has been launched.
You can program the events.
When
the mouse moves, you can change the Form's color (for example),
and when a
key is pressed, You can play a MP3 file.
To start
programming the events, double click on the form.
You will see the "Code
Window" (Figure 20).
Figure 20
The Code Window opened with the Form_Load event.
The Form_Load event
occurs when the form is loaded, and this happening
when you start the
program.
So the code that you will enter to the Form_Load event will be
launched
when the program is being started.
The code that belongs
to the Form_Load event should be placed
between Private Sub Form_Load() and End
Sub
The Form_Load event
should look like this:
Private Sub Form_Load() (The beginning of the Form_Load event)
This is the code that belongs to the Form_Load event
End Sub (The end of the Form_Load event)