GLUT (pronounced like the glut in gluttony) is the OpenGL Utility Toolkit, available for C, C++, FORTRAN, and Ada. GLUT is a window system independent toolkit for OpenGL that implements a simple windowing API. Because of its ease of use, it is often used to learn how to write programs with OpenGL. ...
I have to watch the keyboard during rendering. So, is there a way to force glut to invoke the Keyboard callback immediately?