TLegendSymbol.OnDraw
TLegendSymbol
property OnDraw: TSymbolDrawEvent;
Unit
Chart
Description
Event called every time a legend "symbol" (the little colored rectangle for each time) is displayed.
You can use this event to customize the symbol format, or to repaint the symbol completely using custom Chart1.Canvas methods.
The Legend_SymbolFlags.pas unit in the examples folder shows usage details of this event.