So far extracting a TRL file is easy as well as reading the header. Works fine now.
But now I must start to learn how to draw graphics with Windows. Drawing polygons as well as rotate them is ok. Still a lot of work. But I must read about how to draw corners/circles and fill them as well as how to “select” parts of it and assign the mouse position to the right polygon entry list.
Still interesting 🙂
At least I can draw some stuff 🙂