• alias — The alias of the RADIO_PROFILE type node for which the default value is returned. If alias is not a RADIO_PROFILE type node or if the default value has not been set, profile_default_value returns an empty string .

• doc — Optional. The identifier of the document tree. If doc is omitted or is 0, the current document is used. If doc is invalid or no configuration file is defined for profiling, profile_config returns -1.