UTF-16 in gtkmm?

[Andreas Volz <lists brachttal net>]

Hello,

I like to read Unicode strings into my gtkmm application that are
written in UTF-16. There's only the glib::ustring class to handle
UTF-8. Is there a UTF-16 string class or a way to convert the UTF-16
string to UTF-8?

Then I need to write back my Unicode strings in UTF-16. I found the
docs about "Character Set Conversion"[1], but I don't see how they'll
help me.

[1]http://gtkmm.org/docs/glibmm-2.4/docs/reference/html/group__CharsetConv.html

regards
Andreas