RAD Studio VCL Reference
ContentsIndex
PreviousUpNext
DateUtils.StartOfAWeek Function

Returns a TDateTime that represents 1the first moment on a specified day of a specified week.

Pascal
function StartOfAWeek(const AYear: Word; const AWeekOfYear: Word; const ADayOfWeek: Word = 1): TDateTime;
C++
TDateTime StartOfAWeek(const Word AYear, const Word AWeekOfYear, const Word ADayOfWeek = 1);

DateUtils

StartOfAWeek returns the first expressible moment (12:00:00.000 AM) of the specified day of the specified week. 

The AYear parameter specifies the year of the desired day. 

The AWeekOfYear parameter specifies the week of the year, where 1 is the first week in AYear that includes four or more days. 

The ADayOfWeek parameter indicates the desired day in the specified week, where 1 is Monday, 2 is Tuesday, and so on. 

If the parameters do not specify a valid date, StartOfAWeek raises an EConvertError exception.

Note: The definitions for AWeekOfYear and ADayOfWeek follow the ISO 8601 standard.
 

 

Copyright(C) 2008 CodeGear(TM). All Rights Reserved.
What do you think about this topic? Send feedback!