chv

vector  chv(string channel)

vector  chv(string channel, float time)

vector  chv(int opid, int pid)

vector  chv(int opid, int pid, float time)

Evaluates a channel or parameter, and return its value.

If the parameter is a vector parameter, the base parameter name can be used to return the all components as a vector.

The time is specified in seconds, not in frames.