where to find the data structures to access NTFS/FAT with c++ programming?

I am starting out in NTFS/FAT file systems programming in c++. Such as parsing MFT journal file etc.

I have come through some very good material online such as ntfs.com and understood the theoretical concepts.

But when it comes to access NTFS/FAT file system and do some code. I wonder where can i find such material which contains all the c++ data structures to access the core of windows file systems?

Please help.