Method is_null

modules/gui/gui/src/backend/text_server/rid.h:60–60

	}
	_ALWAYS_INLINE_ bool is_valid() const { return _id != 0; }
	_ALWAYS_INLINE_ bool is_null() const { return _id == 0; }

	_ALWAYS_INLINE_ uint32_t get_local_index() const { return _id & 0xFFFFFFFF; }