code: func (v *TextView) GetIterAtLocation(x, y int) *TextIter {
  	var iter C.GtkTextIter
  	C.gtk_text_view_get_iter_at_location(v.native(), &iter, C.gint(x), C.gint(y))
  	return (*TextIter)(&iter)
  }
docs: // GetIterAtLocation is a wrapper around gtk_text_view_get_iter_at_location().