Who’s calling my program ?

Last Updated on 8 April 2020 by Roberto De Pedrini In some cases, in an RPG program it may be necessary to run different logic depending on the function that called it. Usually we manage this behavior by passing an appropriate parameter to the program, but for programs that act very “in depth”, the call stack can be quite long and have multiple levels; in this case it is necessary to make sure that a parameter set by the first program is correctly propagated down to last program. Another solution is to know if the current program has been called by another program, directly or in the call stack; in this way, depending on the caller, the appropriate logics can be performed. …