Is this an externally triggered function...

Question

Hi,
 
I'm VB.Net programmer stuck with some C# code:

public void LatestReadingUpdated(DeviceInfo info, Renishaw.Calibration.Laser.LaserReading value)
{
UpdateReading(value);

      }


The function above is called regularly but nowhere in the code can I find where it is called.
The C++ program is monitoring a laser, data from which is fed back to the program via a USB connection.
The C++ contains references to many dlls relating to the laser.
The code opens a connection to the laser - how this is done is embedded in the one of the dlls.
Could this function be called via this open channel?

Many thanks

Kristian