我如何在MacBook上访问网络摄像头?

What is the proper way in Mac OS X Lion to access the FaceTime/iSight camera built into the MacBook/MacBook Pro and iMac? I have to imagine there is a way to access this outside of using Xcode. What libraries do I need to feed to g++ and how would I compile it? I know people have done this, I am just not sure how I would go about doing it.What is the proper way in Mac OS X Lion to acce