Active pointing device detection

Disclosed is a method of and system for detecting a pointing device on an interactive surface. The method starts by receiving data representing a contact point, determining if a wireless signal is received and if a signal is received identifying the data as the touch of a pen otherwise identifying the touch as finger or stylus touch. The pen may transmit a wireless signal when it is located within a set distance of the interactive surface. The interactive surface may transmit an intra-red illumination field in addition to the intra-red signal associated with detection of a contact point for enabling detection of the contact point. Also disclosed is a method for a device for an interactive surface, the device receiving a wireless signal and transmitting a wireless response to receipt of the signal.