Andre W B Furtado wrote:
[...] they would like to know if it is possible to work with C/C++ code AND issue some calls to HOpenGL routines. Is it possible? Or the only way is to work around with the FFI?
I'm not sure if I understand you correctly: Do you want to write the engine in Haskell or C/C++?
2. People were surprised when I told that GLUT (the one that "came with" HOpenGL) supports joystick. They said that it normally doesn't. So here comes my second question: is the joystick support a specific HOpenGL functionality?
Nope, it's a WinDoze-specific part of GLUT. It's really a shame that GLUT is not being developed any further, due to some silly copyright stuff and Mark Kilgard's strange attitude towards releasing it to the open source community. :-( Adding e.g. X11 joystick support would basically be a piece of cake... Cheers, S.