DC_TAG dc_tag_add dc_tag_add_subscription DC_TAG_CALLBACK dc_tag_close dc_tag_error_code dc_tag_explain_quality DC_TAG_HANDLE dc_tag_init DC_TAG_MAX_RW_COUNT dc_tag_open dc_tag_read dc_tag_read_subscription dc_tag_remove dc_tag_remove_subscription dc_tag_uninit dc_tag_update dc_tag_write

enum dc_tag_error_code The error code of DCTag SDK Enumerator DC_TAG_ERR_INVALID_PARAM  At least one given parameter is invalid DC_TAG_ERR_NO_CONNECTION  Has not connected to the DataCenter DC_TAG_ERR_MEM_ALLOC_FAILED  Exception when allocation memory DC_TAG_ERR_REQUEST_FAILED  Fail to send request to the DataCenter DC_TAG_ERR_VALUE_COUNT_ERROR  The DataCenter return value count not equals to the request count DC_TAG_ERR_VALUE_TYPE_ERROR  The DataCenter return unexpected value type DC_TAG_ERR_THREAD_ERROR  Fail to initialize the thread DC_TAG_ERR_INBUF_TOO_SMALL  The input buffer size is too small DC_TAG_ERR_DATA_CENTER_BUSY  The data center is too busy to handle the request DC_TAG_ERR_HAS_NOT_INIT  The SDK has not initialized