Description: Calculates the Monday starting the requested ISO 8601 week.
Calling convention: CIP_EncodeKWStart(Year: Integer, WeekNumber: Integer): DateTimeFormat
Parameters:
Year: ISO week-numbering year.
WeekNumber: requested ISO week number from 1 through the last ISO week of the supplied year.
Returns: Delphi date/time value for the calculated Monday, or NULL when either argument is NULL. An out-of-range week number raises an exception.
Availability: Default.
Example:
WeekStart := CIP_EncodeKWStart(2026, 34);