RtFunction substitution, symbol's elements access

RtFunction substitution, symbol's elements access

Hello,
I have problem with getting full list of variables used in screen which is substituted. So far, only solution, which I have found, is extraction of variable's names using "ItemVariable" method. It would be quite good solution, but when screen contains LinkedSymbol I need access to symbol in library. Does anybody know how get access to the elements of symbol in project library or maybe I do it wrong. Please help me.

This is a migrated post! Originally posted on 11.10.2012 by user fib11235. Please be aware that information can be outdated.