Forms Delphi

//...::::::( KORSAN )::::::...\\
var
tutup: Boolean;
i: Integer;
procedure TForm1.Timer1Timer(Sender: TObject);
var
reg1, reg2: hrgn;
begin
if tutup = True then
begin
i := i + 10;
reg1 := CreateRoundRectRgn(0 + i, 0 + i, Width - i, Height - i, 20, 20);
SetWindowRgn(Handle, reg1, True);
end;
if i >= Width then
begin
tutup := False;
i := 1;
end;
if tutup = False then
begin
i := i + 10;
reg1 := CreateRectRgn(0, 0, (Width div 2) - i, Height);
reg2 := CreateRectRgn((Width div 2) + i, 0, Width, Height);
CombineRgn(reg1, reg1, reg2, rgn_or);
SetWindowRgn(Handle, reg1, True);
if i >= Width div 2 then
begin
tutup := True;
i := 1;
end;
end;
end;
procedure TForm1.FormCloseQuery(Sender: TObject; var CanClose: Boolean);
var
reg1: hrgn;
begin
i := 1;
timer1.Enabled := True;
if MessageDlg('Çıkış ?',
mtConfirmation, [mbYes, mbNo], 0) = mrYes then
CanClose := True
else
begin
CanClose := False;
timer1.Enabled := False;
reg1 := CreateRoundRectRgn(0, 0, Width, Height, 0, 0);
SetWindowRgn(Handle, reg1, True);
end;
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
tutup := True;
timer1.Enabled := False;
end;