On 2016-06-09 00:23, Ryan Gonzalez wrote: > Not sure about your question exactly, but everything in Java is passed by > reference
Not quite what I meant. :) The Object Pascal feature is that my example code - ExecuteVisitor() - doesn't know at compile time what instance (any descendant of TVisitor) it is going to instantiate. That information is only known at runtime. Usage example: ExecuteVisitor(MyData, TShowNameVisitor); or ExecuteVisitor(MyData, TShowEmailVisitor); etc. The ExecuteVisitor() will create an instance of the class I specify as the second argument, and then use it as normal. Regards, Graeme _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
