Detecting file encoding

[Adrián Ortega <elfus0 1 gmail com>]

Hello,

I'm making a small text editor to learn as much as I can from gtkmm and I've come across with one problem which I haven't been able to solve. 

The main issue is I don't know how to detect the file encoding of a given file. I've been reading a lot about this, and found that glibmm has some functions that could help me, i.e.

bool	get_charset ()
bool	get_charset (std::string& charset)
std::string	convert (const std::string& str, const std::string& to_codeset, const std::string& from_codeset)
Glib::ustring	locale_to_utf8 (const std::string& opsys_string)
std::string	locale_from_utf8 (const Glib::ustring& utf8_string)

however, I haven't been able to detect the enconding of a file. I know these functions help me to convert from one encoding to another one, but for that I need to know the current file encoding.

Do you have any idea, suggestion or reference that could help me?

Sorry if this is not totally related with gtkmm but I think it's somewhat related to glibmm.

Thanks in advance!

Adrian.