Patent ID: 7715035

Claim:
A system for enabling user interaction with computer software, the system including: a computer system for: determining information relating to at least one text field, the at least one text field being at least partially indicative of an interaction with the computer software; determining an identity, the identity being at least partially indicative of the at least one text field; determining a layout defining an association between: coded data at least partially indicative of the identity; and, the information; generating print data according to the layout, the print data being at least partially indicative of: a plurality of marks, each mark having a predetermined pattern common to all marks and coded data, the predetermined pattern including a rotationally invariant pattern; and the information; and, transferring the print data to a printer; the printer, the printer being responsive to the print data to print a form by printing the coded data and the information; and a sensing device for sensing the marks when moved in an operative position relative to the information, and for using the rotationally invariant pattern to correct for perspective distortion of the marks, for decoding the coded data of the marks, and for generating indicating data at least partially indicative of movement of the sensing device relative to the at least one text field.