TTChartOnSeriesBeforeDrawValues
type TTChartOnSeriesBeforeDrawValues = procedure(ASender: TObject; SeriesIndex: Integer) of object;
Type Library
TeeChartx
Description
The TTChartOnSeriesBeforeDrawValues event is called just before the Series points will be painted.You can then paint on the Chart.Canvas your customized drawings.
WARNING:
Do not change Series properties that would force the Series to be repainted. This may cause recursion and endless repainting !