DateUtils.IsValidDateWeek Function

Indicates whether a specified year, week of the year, and day of the week represent a valid date.

Pascal

function IsValidDateWeek(const AYear: Word; const AWeekOfYear: Word; const ADayOfWeek: Word): Boolean;

C++

Boolean IsValidDateWeek(const Word AYear, const Word AWeekOfYear, const Word ADayOfWeek);

IsValidDateWeek returns true if

AYear falls in the range from 1 to 9999 inclusive.

AWeekOfYear falls in the range from1 to the number of weeks in the specified year.

ADayOfWeek falls in the range from 1 to 7.

Otherwise, IsValidDateWeek returns false.