Crestron SIMPL+ - User Defined Functions

Crestron SIMPL+
®
Software
Language Reference Guide - DOC. 5797G SIMPL+
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z 267
User Defined Functions
User Defined Functions Overview
A SIMPL+ program may have functions that are defined by users. Typically, a
function is defined to modularize code to make repetitive tasks easier to perform or
make code easier to read.
Function Definition
<function_type> <function_name> ([argument list])
{
<statements>
[RETURN <expression>;]
}
The following table demonstrates what <function_type> may be, what it means, and
what data may be returned to the caller. Note that in all cases, a RETURN is not
required, as the system defaults it to a shown specified value.
<function type> MEANING RETURN VALUE
FUNCTION Returns no data to the
caller.
No RETURN
INTEGER_FUNCTION Returns an integer value to
the caller.
INTEGER expression
(default 0)
LONG_INTEGER_FUNCTION Returns a long integer
value to the caller.
LONG_INTEGER expression
(default 0)
SIGNED_INTEGER_FUNCTION Returns a signed integer
value to the caller.
SIGNED_INTEGER expression
(default 0)
SIGNED_LONG_INTEGER_FUNCTION Returns a signed long
integer value to the caller.
SIGNED_LONG_INTEGER expression
(default 0)
STRING_FUNCTION Returns a string value to
the caller.
STRING expression
(default ““)