ParallelPort describes the low-level interface to a parallel communications port made available by the underlying system. ParallelPort defines the minimum required functionality for parallel communications ports. Picks the best available mode.
Enhanced capabilities port.
Checks if the printer is in selected state. Checks if the printer has timed out. Expresses interest in being notified when the output buffer is empty. Expresses interest in being notified of port errors. 4 bits at a time.