Err, well, I copy-pasted something too fast :
The implementation of OpenGLScene::OpenGLScene(char* title, int width, int height, int bits, bool fullscreenflag) should do something usefull with the parameters, of course.
Depending on your design, you have to either create a default constructor for your mother class, or to pass parameters to the mother's constructor from the child class.
Since "char* title, int width, int height, int bits, bool fullscreenflag" are parameters that the mother class deals...
