Create Wrapper Interfaces For C and C++ Libraries Using SWIG With Delphi Support SWIG is a program that takes C++ .h and .cpp files and generates object-oriented language bindings for various languages. Cross-language shared libraries SWIG (Simplified Wrapper and Interface Generator) is a software development tool for building scripting language interfaces to C and C++ programs.

 https://www.fmxexpress.com/create-wrapper-interfaces-for-c-and-c-libraries-using-swig-with-delphi-support/

https://github.com/FMXExpress/swig-delphi 

https://wiki.freepascal.org/SWIG