Parameters (PHP and Corel Paradox Cross Reference Guide)

By Reference or Value (and by constant)
The default for parameters is by value. For by reference, add var in front of the parameter. ObjectPAL also offers constant parameters where you add const in front of the parameter. A constant parameter is like a read-only parameter the compiler can optimize. You cannot assign a value to a constant parameter.

Syntax Example:   method cmCode(s String) ;...s is by value. endMethod   method pushButton(var eventInfo Event)   ;...eventInfo is by reference. endMethod   method cmCode(Const s String)   ;...s is a constant read-only parameter. endMethod    proc cpNever() String   return "Never duplicate a line of code!" endProc