Submitter&#x2F;site creator here. The thing is it&#x27;s Free Pascal, a fully object oriented version of Pascal geared up for visual applications. Language features include intrinsic events types (delegates in C#), run time type information (what makes live components possible), managed types (such as string, array, interface, and variant types), generics, operator overloading, implicit&#x2F;explicit type convert plus a whole lot more.<p>That and it&#x27;s based off Turbo Pascal and Delphi (it supports the full D7 dialect and many of the newer Delphi features as well). As such people have created a wonderful cross platform OS and widget set agnostic visual library called the LCL.