Using Gamepads..?

Hi,

I'd like to use Gamepads for my current development, but have no idea how to do this..

I found these "HID Utilities 2.0" from Apple, compiled them and... have no idea how to use them.
Some examples in the Internet say something like:

[....]
	pRecDevice deviceCandidate = NULL;
	deviceCandidate = HIDGetFirstDevice();
[....]

But "pRecDevice" isn't declared anywhere..

How do I use Gamepads in m Cocoa/C++ Application?? (MacOSX 10.6)

Aya~