SRGraphFeedback Class Overview

The SRGraphFeedback class holds a polygonal outline for each item of data drawn on screen by the data drawing routines. These shapes may be rectangular bars, pie wedges or the individual faces of the more complex 3d objects. Along with the shape and size of the drawn data the SRGraphFeedback object keeps a record of the group and index to which the data defining the drawn shape belongs. After a draw cycle has taken place it is possible to interrogate the SRGraph's list of feedback objects using the mouse pointer coordinates or indeed any x,y position on screen. If the point is found to be inside the feedback polygon the application can derive the actual data address from the data stored in SRGraphFeedback.