BAB 11

BAB XI. OBYEK SCROLL BAR

unit UnitBab11;
interface
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;
type
  TForm1 = class(TForm)
    Label1: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    Label6: TLabel;
    Label2: TLabel;
    SBPL: TScrollBar;
    SBPD: TScrollBar;
    SBLL: TScrollBar;
    SBLD: TScrollBar;
    EDPL: TEdit;
    EDPD: TEdit;
    EDLL: TEdit;
    EDLD: TEdit;
    EDLUAS: TEdit;
    CSELESAI: TButton;
    procedure CSELESAIClick(Sender: TObject);
    procedure SBPLChange(Sender: TObject);
    procedure FormCreate(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;
var
  Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.CSELESAIClick(Sender: TObject);
begin
APPLICATION.TERMINATE
end;
procedure TForm1.SBPLChange(Sender: TObject);
begin
EDPL.Text:=FORMAT('%18.0N',[SBPL.Position/100]);
EDPD.Text:=FORMAT('%18.0N',[SBPD.Position/100]);
EDLL.TEXT:=FORMAT('%18.0N',[SBLL.Position/100]);
EDLD.TEXT:=FORMAT('%18.0N',[SBLD.Position/100]);
EDLUAS.TEXT:=FORMAT('%18.0N',[SBPL.POSITION/100*SBLL.POSITION/100-
SBPD.Position/100*SBLD.Position/100]);
end;
end.

HASIL PROGRAM: