[fpc-pascal] question about FpTimes in BaseUnix package

[Rainer Stratmann]

Am Tuesday 17 November 2009 19:34:19 schrieb Bruce Bauman:
> I am using the FpTimes function from the BaseUnix package. The
> documentation says it returns -1 on an error, otherwise the number of
> clock ticks since boot time.

What does clock ticks exactly mean?
I am searching for an equivalent to getticks in windows.
Rainer