how to trap system library functions?

[Eric]

    I want to add some encoding in data send out via serial and ir port.
but the functions of these 2 areas are library base, I found that it is
difficult to trap them. Greg Winton tell me that "1. hack the SysLibFind
trap and look for someone trying to load IR,
 2. then load your own version instead.",
the first step is not difficult to do, for the second step, I got
difficulty. anyone good guy help me?!

Eric



-- 
For information on using the Palm Developer Forums, or to unsubscribe, please see 
http://www.palm.com/devzone/mailinglists.html