$/*$ Handle for the trigger group of events. $*/$ AMXID amxidTrigger; $/*$ Constants for use in the group. $*/$ #define TRIGGER$\_$MASK OxOOOl #define TRIGGER$\_$SET OxOOOl #define TRIGGER$\_$RESET OxOOOO void main $($void$)/*$ Create an event group with the trigger and keyboard events reset $*/$ ajevcre $($&amxidTrigger, $0,$ "EVTR"$)$; void. interrupt vTriggerISR $($void$)$ I$*$ The user pulled the trigger. Set the event. $*/$ ajevsig $($amxidTrigger$,$ TRIGGER$\_$MASK, TRIGGER$\_$SET$)$; void vScanTask $($void$)$ while $($TRUE$)$ PROBLEMS $209$ I$*$ Wait for the user to pull the trigger. $*/$ ajevwat $($amxidTrigger$,$ TRIGGER$\_$MASK, TRIGGER$\_$SET, WAIT$\_$FOR$\_$ANY, WAIT$\_$FOREVER$)$; I$*$ Reset the trigger event. $*/$ ajevsig $($amxidTrigger$,$ TRIGGER$\_$MASK, TRIGGER$\_$RESET$)$; $!!$ T$$rn on the scanner hardware and look for a scan $..\}$