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    TFPExprFunctionCallBack

    Callback procedure type for function evaluation

    Declaration

    Source position: fpexprpars.pp line 492

    type
  TFPExprFunctionCallBack = procedure(var Result: TFPExpressionResult; 
                                    const Args: TExprParameterArray);

    Arguments

    Name Description
    Result The result of the function callback
    Args The arguments passed to the function

    Description

    This procedural type defines the signature for callback procedures that can be used to implement custom function evaluation. It allows external code to provide function implementations that will be called during expression evaluation.