Detection of a physical object and touch screen interaction

A keyboard has a defined pattern of contact points, which are recognizable as the keyboard when it is placed on a touch screen display surface. The keyboard communicates an identification to a companion module, which can be operated with the touch screen display surface. A text object is displayed on the touch screen display surface, when the keyboard on the touch screen display surface is arranged. User keystrokes at the keyboard are then communicated to a display as alphanumeric characters in the text object or transferred. A multifunctional straight strip has a defined pattern of contact points, which are recognizable as the multifunctional straight bar when it is placed on the touch screen display surface. The multifunctional straight bar communicates with a companion module operable with the touch screen display surface. A user input form is obtained on the multifunctional straight bar or received, and a molded article which corresponds to the user input form is displayed on the touch screen display surface, or shown.