如何在不看到object -C变量的C函数中写入NSObject ?

I'm trying to get some code going that lets me display raw trackpad data from my macbook pro, like the app FingerMgmt. Unfortunately, no one seems to have the source for FingerMgmt. I did find some other source code that kind of works, however. I was able to NSLog the data I wanted to see like this:I'm trying to get some code going that lets me