Giuliano Colla via fpc-pascal said on Wed, 3 May 2023 19:33:25 +0200
> > Override: When you're dealing with objects, you have the > inheritance, that is you may derive a new class (the template of an > object) from an existing class and the newly created class inherits > all the methods and properties of the parent class. In this case > TTouchJunction is declared as a descendant of TCustomApplication, > therefore it inherits all the methods and properties. If you need > that your object does something different from the methods of its > parent, but keep the same name, you must declare that your > declaration overrides the ancestors one. If in the body of your new > method if you want to execute also the ancestor method you may call > it with the keyword "inherited". > > * > > Virtual: means that this method can be overridden by a descendant > class. The same does the keyword Dynamic. The difference has to do > with the way the code is allocated in memory. Virtual is optimized > for speed, Dynamic for memory. > >Hope that it helps. Thanks Giuliano, it helps a lot. I'm familiar with the concepts you mentioned from work with Perl, Python and C++, and it's good to know how they're implemented in FPC. Thanks, SteveT Steve Litt Autumn 2022 featured book: Thriving in Tough Times http://www.troubleshooters.com/bookstore/thrive.htm _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
