![]() |
![]() |
![]() |
Tracker Extract Library Reference Manual | |
---|---|---|---|---|
A | C | S | T |
NULL is ok, both for passing and for returning.
This parameter is a 'user_data', for callbacks; many bindings can pass NULL here.
The callback is valid until first called.
Free data after the code is done.
Don't free data after the code is done.