Unit 'fpexprpars' Package
[Overview][Constants][Types][Classes][Procedures and functions][Index] [#fcl]

TFPExprVariableCallBack

Callback procedure type for variable evaluation

Declaration

Source position: fpexprpars.pp line 494

type TFPExprVariableCallBack = procedure(

  var Result: TFPExpressionResult;

  constref AName: ShortString

);

Arguments

Result

  

The result of the variable callback

AName

  

The name of the variable being evaluated

Description

This procedural type defines the signature for callback procedures that provide variable values during expression evaluation. It allows external code to resolve variable names to their corresponding values at runtime.


Documentation generated on: Dec 15 2025