Amitava Datta teaches the C interface to OpenGL. Textbooks are the Red Book and the Blue Book, which are available free online.
People who have previously done the unit will discourage you from taking the unit based on its Visual Basic past; they can be safely ignored.
[http://undergraduate.csse.uwa.edu.au/units/CITS2231 Unit website]
[http://handbooks.uwa.edu.au/units/cits/cits2231 Handbook entry]
