Programming Style

This manual uses the following guidelines in its Visual Basic code:

Visual Basic keywords are in lowercase with an initial capital letter.

Dim intSomeValue As Integer, strTextValue As String
Dim intStartNumber As Integer
' If, Then, and Str are Visual Basic keywords.
If intSomeValue = 0 Then strTextValue = Str(intStartNumber)

Variable names begin with a lowercase prefix, followed by a lowercase word or words with an initial capital letter. Variables are declared at beginning of an example.
```
Dim dblIncome As Double
Dim strFirstName As String * 30
```
Line labels are used instead of line numbers for error-handling routines and for On...GoSub and On...GoTo statements.
```
On Error GoTo ErrorHandler
	.
	.
	.
ErrorHandler:
	MsgBox Err.Description
```

An apostrophe ( ' ) introduces a comment.

' This is a comment; these two lines
' are ignored when the program is running.

Control-flow blocks and statements in Sub and Function procedures are indented.
```
Sub SomeCode()
	If intX > 0 Then
		intP = intQ
	End If
End Sub
```