Subroutines (Functions)

A subroutine is a section of code that stands alone, and can be called from anywhere else in the program. The primary method of incorporating subroutines in NetLinx programming is via the DEFINE_FUNCTION keyword.

Note

NetLinx also supports the primary method of incorporating subroutines in Axcess programming - the DEFINE_CALL keyword. DEFINE_FUNCTION differs from DEFINE_CALL by allowing values to be returned using the RETURN statement.

Rules

• The function name must not be a previously defined constant or variable or a name assigned to a buffer or a wait.
• You cannot declare and initialize variables in the same line.
• You must group the declarations first, followed by the initialization.
• Function names are not case sensitive.

See Also

• Subroutines - Calling Parameters
• Subroutines - Return Statements
• SYSTEM_CALL Subroutines
• Subroutine Keywords