How to use magnet links in LibTorrent lib

How to use magnet links in LibTorrent C/C开发者_StackOverflow++ lib? I need an simple example of working with it - Something like I give him a link he gives me a file.

While I haven't used it personally, but you could check http://www.qbittorrent.org/, it uses libtorrent internally and it is under the GPL-2 license.