What does 'getFields( )' do?

Good day, everyday...

I was looking around some of the programs today. I found one interesting method, "getFields( )", which I can't find the explanation in MSDN.
For your information, it's a method in the ADO RecordSet class.
It also pointed out that the method return a CField value.

So, if you don't mind, explaining what actually does the function do? And what exactly it's returning, in other words, what's a CField value?

Thank you in advance...