ApplyKeyReduction() - Attempts to delete keys that
lie within the given time range.
Parameters:
Control
*cont - The controller whose keys to reduced.Interval
range - The time range within which to delete keys.float thresh - After the key reduction, the
controller's values at each step are guaranteed to be within this
distance from their original values.TimeValue step - The controller will be sampled in
steps of this time increment.KeyReduceStatus *status -
The callback object used to report the key reduction status and
control continued processing.