The Delphi app scanning utilities pick up X1 as a Delphi/C++Builder app. Here is some proof that indicates that it was not written using C++Builder:
Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.