The StartOfTheWeek function returns a TDateTime date value that represents 12:00:00:00 A.M. on the first day of the week identified by the given date parameter AValue.
StartOfTheWeek returns the first expressible moment of the same week specified by AValue, by replacing the time portion of AValue with 00:00:00, and changing the day to Monday.
The function defines the week of AValue according to the ISO 8601 standard, where the week starts on Monday and ends on Sunday.
Declaration: Function StartOfTheWeek(const AValue: TDateTime): TDateTime;
An example follows.
procedure OnMapEvent(var Value:Variant);
var
TheDate : TDateTime;
begin
//Processing date is 29/11/2023, so the return value is 27/11/2023 00:00:00
TheDate := StartOfTheWeek(Date);
LogInfo('The start of the week date is '+FormatDateTime('dd/mm/yyyy hh:nn:ss',TheDate));