code: func ClipboardGet(atom gdk.Atom) (*Clipboard, error) {
  	c := C.gtk_clipboard_get(C.GdkAtom(unsafe.Pointer(atom)))
  	if c == nil {
  		return nil, nilPtrErr
  	}
  
  	cb := &Clipboard{glib.Take(unsafe.Pointer(c))}
  	return cb, nil
  }
docs: // ClipboardGet() is a wrapper around gtk_clipboard_get().