[gtkmm] Drawing a string to a drawable.

[Juan Linietsky <coding reduz com ar>]

Hello, what is the procedure to draw a string into a Gdk::Drawable?
So far what is on the documentation seems to be outdated, because
by checking in the sources the only way to draw "text" are complex
functions that ask me to make a pango glyphstring. I looked
at the pangomm headers but I cant figure out how am I supposed
to create anything usable for the Gtk::Drawable.

Thanks in advance.
Juan Linietsky