The QUERY_SERVICE_LOCK_STATUSA structure defines information about the lock status of an SCM database. String values are stored in ANSI.

 typedef struct {
   DWORD fIsLocked;
   [string,range(0, 8 * 1024)] char* lpLockOwner;
   DWORD dwLockDuration;
 } QUERY_SERVICE_LOCK_STATUSA,
  *LPQUERY_SERVICE_LOCK_STATUSA;

fIsLocked: The lock status of the database. If this member is nonzero, the database is locked. If it is 0, the database is unlocked.

lpLockOwner: A pointer to a null-terminated string that contains the name of the user that acquired the lock.

dwLockDuration: The elapsed time, in seconds, since the lock was first acquired.