Image Number 4 for United States Patent #8140999.
A display process device that includes a screen definition information interpretation section that interprets screen definition information which defines a moment in which a first screen event is to be issued, and issues a first screen event. The first screen event is for executing an action, and corresponds to an instruction inputted from an input I/F section. A first event conversion section converts the first screen event to a first device event which may be interpreted by a device resource control section. The device resource control section controls a device resource in accordance with the first device event. Also, the device resource control section issues a second device event having described thereon a result of referencing and modifying a device resource. A second event conversion section converts the second device event to a second screen event which may be interpreted by a screen definition information interpretation section.