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unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ExtCtrls, adcpuusage;

type
  TForm1 = class(TForm)
    Image1: TImage;
    Timer1: TTimer;
    procedure FormCreate(Sender: TObject);
    procedure Timer1Timer(Sender: TObject);
  private
    { Private-Deklarationen }
    CPULast: Array[0..80] Of Byte;
  public
    { Public-Deklarationen }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
  Image1.Width:=400;
  Image1.Height:=100;
end;

procedure TForm1.Timer1Timer(Sender: TObject);
Var i: Integer;
begin
  CollectCPUData;
  For i:=79 DownTo 0 Do
    CPULast[i+1]:=CPULast[i];
  CPULast[0]:=Round(GetCPUUsage(0)*100);

  Image1.Picture.Bitmap:=Nil;
  With Image1, Canvas Do Begin
    MoveTo(0,Pred(Height)-CPULast[0]);
    For i:=1 To 80 Do
      LineTo(i*5,Pred(Height)-CPULast[i]);
  End;
end;

end.