Blackout LispUsers Package Richard Acuff 17-Jun-84 Loading BLACKOUT.DCOM adds the item Blackout to the background menu. Selecting this item will cause the screen to go dark except for a bouncing box with the the name of the current user. The machine will stay in this state until a key is struck, thus keeping the screen from getting "burnt". Blackout also has a secure mode in which it will demand that the user correctly type her password before ceding control. Thus, you can leave your terminal temporarily without fear of sensitive information on your screen (such as your mail file) being compromised. The variable BLACKOUT.ASK.PASSWORD controls Blackout's mode. If it is NIL, no password will be required (non-secure mode). If it is set to MENU, a menu will pop up allowing the user to select the mode interactively. Any other value implies secure mode. The variable BLACKOUT.ICON contains a window which is bounced around the screen when Blackout is running. It initially contains the user's name, but may be changed to some other window. Cavets Unfortuneatly, it is impossible for other processes to run while Blackout is running in secure mode, due to Lisp's process and window mechanism. However, other processes may run while non-secure Blackout is in use. They should not attempt to do keyboard input, however, or the screen will get rather confused. Typing errors made while inputing the password cannot be corrected. You can, however, try again. ÔGACHA GACHA ÔGACHA Ô GACHA ÔGACHA Ô$GACHA GACHA úGACHA ÔGACHA Ô GACHA ÔGACHA Ô GACHA GACHA kGACHA GACHA oGACHA ÔGACHA Ô GACHA GACHA ¡GACHA ÔGACHA ÔGACHA ÔGACHA €GACHA ÔGACHA Ô8GACHA ÔGACHA ÔbGACHA ÔGACHA Ê1z¸