TdxSpreadSheetFunctionInfo.ParamInfo Field
Stores a reference (in Delphi) or pointer (in C++Builder) to the routine that defines the function syntax.
Declaration
ParamInfo: TdxSpreadSheetFunctionParamInfoField Value
| Type |
|---|
| TdxSpreadSheetFunctionParamInfo |
Remarks
The function signature is ready for use in formula expressions when it has both the implementation and syntax specification routines assigned to the Proc and ParamInfo fields, respectively.
A syntax specification routine defines the number of parameters, their types, and position order in a function call within a formula expression. Refer to the TdxSpreadSheetFunctionParamInfo procedural type description for details.
The TdxSpreadSheetFunctionsRepository.Add procedure uses the AParamInfo parameter value to initialize the ParamInfo field of a newly created function signature.
Note
The ToString function calls a syntax specification routine assigned to the ParamInfo to generate a syntax prototype string for the function signature.