Adds the listener to the list and returns its index in the list.
From this point forward, the listener's IChartPanelListener methods will be called as the state of the TRSChartPanel, the TRSCustomChart or its values change.
Namespace: FMX.RS.ChartPanel
Delphi |
public |
Parameters
Listener
Type: IChartPanelListener
Type: Integer
