TFPFunctionEventHandler.CallBack property
The event handler for function evaluation
Declaration
property CallBack: TFPExprFunctionEvent read FCallBack;Description
The CallBack property holds the event handler method that is invoked when the function needs to be evaluated.
The event handler receives the function parameters and returns the computed result, enabling object-based function implementations.
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.