Who has the @#$% record locked!?

Question

I know there are hundreds of other posts asking this (I've read every one I think), but none give the whole answer (unless I haven't found that one yet). I hate to have to add another one, but I can't believe this has not been resolved due to the sheer number of people asking for this.
Instead of the non-user friendly "Could not reserve record..." message which means nothing to the users and just generates calls to me, I want to display "User XYZ has the record locked" so the user that gets this message will call the other user instead! Should be simple, right?
I know to use the on-lock trigger and select for update to see if the row is locked. I know to use v$lock to look for rows with the type of 'TX'. The trouble is, there will be multiple TX type rows. How do I know which one is MY row? No column in v$lock, v$locked_object or v$session seems to map to the rowid, which is the only way I know to identify MY row.
Please, how do I relate MY row to one of the TX type rows in v$lock (or a row in v$locked_object which has the userid in it)!? Are there other system views I need to be aware of that have this info maybe?
Thanks for any info. I'm using forms 10g (9.0.4) against the 10g database.
Gary

Answer 1

Well, I have reread your post, and maybe you can use a variant of inolau query :
SQL> select
  2           (select osuser from v$session where sid=a.sid) blocker,
  3         a.sid,
  4           (select serial# from v$session where sid=a.sid) serial#,
  5        ' blocks ',
  6         (select osuser from v$session where sid=b.sid) blockee,
  7             b.sid, c.username username
  8    from v$lock a, v$lock b, v$session c
  9  where a.block = 1
10     and b.request > 0
11     and a.id1 = b.id1
12     and a.id2 = b.id2
13*    and b.sid = c.sid
SQL>                                                                  You know your session id, so you know who is blocking you.