how to track the report calling from powerbuilder?

Suppose I have a powerbuilder application myapp. there are many reports created with pb. There are 2 possible for pb report:

datawindow get data from stored procedure

datawindow get date with sql.

myapp use a specific login mylogin to connect to sybase ase.

then I want to track who and when the report running. how to implement it? any way without modify myapp code?

I tried with sybase audit, but myapp connect with mylogin. So anyone run myapp will be same login.

what's the solution for this case?