From the simple1 tutorial (docs/html/manual/cs_4.3.1.5.html#4.3.1.5):
void Simple::ProcessFrame ()
{
...
// First get elapsed time from the virtual clock.
csTicks elapsed_time = vc->GetElapsedTicks ();
...
How is calculated the value returned by GetElapsedTicks?
Is it the time passed since the last frame?
Many Thanks!