Hardware controls associated with features of a scanner are removed, and a combined scanner and transaction terminal is provided without the hardware controls. Operations associated with the removed hardware controls are graphically depicted as selectable window options within scanner-generated windows. The scanner generated windows are provided as a projected human interface for the missing hardware controls. The projected human interface is provided with and accessible from a display that includes transaction windows produced by transaction software of the transaction terminal, such that the selectable window options are always accessible from the display during transaction processing performed by the transaction software.