TExprBuiltInManager.AddDateTimeVariable function

Member of TExprBuiltInManagerpublicIn unit fpExprPars

Add datetime variable to built-in collection

Declaration

pascal

function AddDateTimeVariable(const ACategory: TBuiltInCategory; 
 const AName: ShortString; AValue: TDateTime)
: TFPBuiltInExprIdentifierDef

Arguments

`ACategory`	Category for the datetime variable
`AName`	Name of the datetime variable
`AValue`	Initial datetime value

Function result

Returns the added datetime variable identifier

Description

The AddDateTimeVariable method adds a datetime variable with the specified name and initial value to the built-in collection. The variable will be available in expressions under the provided name and will initially hold the specified datetime value.

Built-in datetime variables can be used to provide predefined date/time values like current date, system timestamps, or reference dates that expressions can access and use in date/time calculations.

An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.