Display control apparatus and display control system for switching control of two position indication marks

摘要

A display system receives image data from a plurality of image sources and displays the received image data on a display unit. The display system includes an input unit for inputting a control signal supplied from an input/output unit, a controller for controlling an image to be displayed on the display unit in accordance with the control signal input from the input unit, and an image selection unit for selecting a desired image from images displayed on the display unit. A switching unit switches an image to be controlled by the controller in accordance with the image selected by the image selection unit.