user lock attribute

Question: Using BAPI's (SAP_ABA version: 46C), how can I read the user lock attribute

Details: I develop a software that creates, modifies, deletes SAP users and read their attributes. I want my software to be able to know if a user is locked or not (it is already able to lock or unlock users with the BAPI's: BAPI_USER_LOCK and BAPI_USER_UNLOCK). My software is written in C, uses SAP R/3 release 4.6C, the 4.6C BAPI's (SAP_ABA 46C) and RCF 6.10. As my BAPI version is SAP_ABA 46C, I cannot use the BAPISLOCKD table (which a call to

BAPI_USER_GET_DETAIL would have returned) nor can I use the USR02-UFLAG table.