SDL_ttf unicode chars prob

has anyone used this library for displaying fonts in dc? I have problem displaying the unicode characters other than the english ones. E.g. I want to put on screen some greek characters but instead of this i get unrecognisable chars. I use true type font (from windows) which supports greek.

I have used it with standard english alphabet only (and it works fine with that).

thanks for your quick answer quzar. With english chars I have no problem too. anyone who got it work without english chars???