TFPExprIdentifierDef.OnGetFunctionValueCallBack property
Callback property for function value evaluation
Declaration
property OnGetFunctionValueCallBack: TFPExprFunctionCallBack read FOnGetValueCB write FOnGetValueCB;Description
The OnGetFunctionValueCallBack property holds a callback function that is called when the identifier represents a function and needs to be evaluated.
The callback receives the function parameters and returns the computed result value.
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.