code: func (ps *PrintSettings) GetInt(key string) int {
  	cstr := C.CString(key)
  	defer C.free(unsafe.Pointer(cstr))
  	c := C.gtk_print_settings_get_int(ps.native(), (*C.gchar)(cstr))
  	return int(c)
  }
docs: // GetInt() is a wrapper around gtk_print_settings_get_int().