code: func FrameNew(label string) (*Frame, error) {
  	var cstr *C.char
  	if label != "" {
  		cstr = C.CString(label)
  		defer C.free(unsafe.Pointer(cstr))
  	}
  	c := C.gtk_frame_new((*C.gchar)(cstr))
  	if c == nil {
  		return nil, nilPtrErr
  	}
  	obj := glib.Take(unsafe.Pointer(c))
  	return wrapFrame(obj), nil
  }
docs: // FrameNew is a wrapper around gtk_frame_new().