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...get the number of days of a month?
Autor: E. Zurschmiede
Homepage: http://www.delight.ch
[ Print tip ]  

Tip Rating (4):  
     


function DaysOfMonth(mm, yy: Integer): Integer;
begin
  if 
mm = 2 then 
  begin
    
Result := 28;
    if IsLeapYear(yy) then Result := 29;
  end 
  else 
  begin
    if 
mm < 8 then 
    begin
      if 
(mm mod 2) = 0 then
        
Result := 30
      else
        
Result := 31;
    end 
    else 
    begin
      if 
(mm mod 2) = 0 then
        
Result := 31
      else
        
Result := 30;
    end;
  end;
end;

procedure TForm1.Button1Click(Sender: TObject);
var
  
days: Integer;
begin
  
days := DaysOfMonth(7, 2001);
  ShowMessage('July 2001 has ' + IntToStr(days) + ' days');
end;


 

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