Chapter 36 User-Defined Subprograms
36.1 Subprograms that Return a Value
In Visual Basic and many other computer languages, a subprogram that returns a value is called a function. There are two categories of functions. There are the built-in functions, such as Fix(), and there are the user-defined functions, those that you can personally write and use in your own programs.
The general form of a Visual Basic function that returns a value is shown here.
Function name([arg1 As type1, arg2 As type2, arg3 As type3, …]) As return_type
Local variables declaration section
A statement or block of statements
Return value
End Function
where
►name is the name of the function.
►arg1, arg2, arg3, … is a list of arguments (variables, arrays etc.) used to ...
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