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    TFPFunctionEventHandler.CallBack

    The event handler for function evaluation

    Declaration

    Source position: fpexprpars.pp line 721

    public property CallBack: TFPExprFunctionEvent;

    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.