CPU kullanım durumunu öğrenme

unit Unit1;interface

uses Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs, ComCtrls, CommCtrl, StdCtrls, Menus,WinSpool, ExtCtrls, Buttons, Registry;

type

TForm1 = class(TForm)

Button1: TButton;Label1: TLabel;Label2: TLabel;Timer1: TTimer;

Button2: TButton;procedure Button1Click(Sender: TObject);

procedure Button2Click(Sender: TObject);

procedure Timer1Timer(Sender: TObject);

private{ Private declarations }

started : boolean;

reg : TRegistry;

public { Public declarations }

end;

var

Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.Button1Click(Sender: TObject);

var Dummy : array[0..1024] of byte;

begin // Stats started by Button1 hit

Reg:=TRegistry.Create;

Reg.RootKey:=HKEY_DYN_DATA; // Statistic data is saved under this topic

{ Before starting retrieving statistic data you have to query the appropiate key under 'PerfStats\StartStat'. }

Reg.OpenKey

('PerfStats\StartStat',false); // Open this key first to start collecting performance data Reg.ReadBinaryData('KERNEL\CPUUsage',Dummy,Sizeof(Dummy));

Reg.CloseKey;started:=true;end;

procedure TForm1.Timer1Timer(Sender: TObject);

var CPUU : integer;

begin

{ After starting the collection of statistic data, you can retrieve the recent value under the 'PerfStats\StatData' key. This is done by a timer event in this example }

if started then begin

Reg.OpenKey

('PerfStats\StatData',false); // Open extension kex for txt files Reg.ReadBinaryData('KERNEL\CPUUsage',CPUU,SizeOf(Integer));

Reg.CloseKey;Label1.Caption:=IntToStr(CPUU)+'%';end;end;

procedure TForm1.Button2Click(Sender: TObject);

var Dummy : array[0..1024] of byte;

begin

// Button2 hit stops statistic collection { Collecting statistic data is stopped by a query under 'PerfStats/StopStat' }

Reg.OpenKey

('PerfStats\StopStat',false); // Open this key first to start collecting performance data

Reg.ReadBinaryData

('KERNEL\CPUUsage',Dummy,SizeOf(Dummy));

Reg.Free;Started:=false;end; end.