UnDelphiX is the unofficial version of the DelphiX library.
DelphiX is a small library for programming in Delphi with DirectX. It was created by Mr. Hiroyuki Hori in Japan. The library includes twelve components and the DirectX 7 headers. See the home page (on archive.org).
The library was revised to JEDI official DirectX headers and named unDelphiX. See also gameDev/UnDelphiX homepage (on archive.org)
In 2004 the library was revised (new compilation of DirextX.pas headers) and hardware acceleration was added. The old code can be recompiled with minor changes, but with improved performance.
The new home for the library is here. The latest version is 22.214.171.124 (last updated in Dec 5, 2018). Main Changes were compatibility for Delphi 10.3.
The package contains full library source, DirectX headers and many examples. Installation into IDE Delphi supported too.