SRGDataWatcher Class Overview

The SRGDataWatcher provides a method for monitoring the value of selected data items and generating events if the measured data falls outside of a preset range. The datawatcher is a simple component that is placed on the component list before the display. If it detects a data item that is out of bounds it will call one of its excursion flagging routines and set the highlight bit in the style of the offending data item. This highlight is then shown by the display and other appropriate action may be taken by functions which override the excursion methods.