function GetDirSize(dir: string; subdir: Boolean): Longint;
var
rec: TSearchRec;
found: Integer;
begin
Result := 0;
if dir[Length(dir)] <> '\' then dir := dir + '\';
found := FindFirst(dir + '*.*', faAnyFile, rec);
while found = 0 do
begin
Inc(Result, rec.Size);
if (rec.Attr and faDirectory > 0) and (rec.Name[1] <> '.') and (subdir = True) then
Inc(Result, GetDirSize(dir + rec.Name, True));
found := FindNext(rec);
end;
FindClose(rec);
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
label1.Caption := FloatToStr(GetDirSize('e:\download', False) / Sqr(1024)) + ' MBytes';
label2.Caption := FloatToStr(GetDirSize('e:\download', True) / Sqr(1024)) + ' MBytes';
end;
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