Where can I find a detailled description of all still included API, DirectX and OpenGL functions ? And where can I find a good reference, where most used functions are covered ? (or even all) I'm interested in writing a small c++ program which can update and manage the "api.def" of C-Lite.
All API functions covered are listed in api.def. Detailed descriptions of those functions should be easy to find on the Microsoft website, but you need to look yourself - lite-C doesn't include documentation about them.