A system for enabling user interaction with computer software which includes a printer for receiving print data, printing a form, using the print data, by printing information related to at least one text field coincident with coded data indicative of the text field, receiving indicating data from a sensing device and transferring the indicating data to a computer system to allow the interaction to be interpreted. The sensing device when moved relative to the text field senses the coded data and generates the indicating data using the sensed coded data to be indicative of the relative movement of the sensing device. The computer system determines the information, an identity indicative of the text field, and a layout defining an arrangement for coded data indicative of the identity and information, and generates the print data to be indicative of the identity, layout and information.