Mega Code Archive
Days in month
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This article demonstrates how to detect how many days there are in a given month.
procedure TForm1.Button1Click(Sender: TObject);
var
MyDate : TDateTime;
tmpStr : String;
tmpInt : Integer;
begin
MyDate := Date() + 365 - (30*5);
tmpStr := FormatDateTime('mmmm yyyy',MyDate);
tmpInt := DaysInMonth(MyDate);
ShowMessage(tmpStr + ' has ' + IntToStr(tmpInt) + ' days...');
end;
function TForm1.DaysInMonth(ADate:TDateTime):Integer;
var
MyMonth,
MyYear,
MyDay : Word;
MyDayTable : TDayTable;
tmpBool : Boolean;
begin
DecodeDate(ADate, MyYear, MyMonth, MyDay);
tmpBool := IsLeapYear(MyYear);
MyDayTable := MonthDays[tmpBool];
Result := MyDayTable[MyMonth];
end;
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