unit1.pas

Delphi6编程大师_多媒体

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, ExtCtrls, Registry;

type
  TForm1 = class(TForm)
    RadioGroup1: TRadioGroup;
    Button1: TButton;
    Button2: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

function IsCdAutoRunOn : bool;
var
  reg: TRegistry;
  AutoRunSetting : integer;
begin
  reg := TRegistry.Create;
  reg.RootKey := HKEY_CURRENT_USER;
  reg.OpenKey(
    'Software\Microsoft\Windows\CurrentVersion\Policies\Explorer',
              false);
  AutoRunSetting:=reg.ReadBinaryData('NoDriveTypeAutoRun', AutoRunSetting , sizeof(AutoRunSetting));
  reg.CloseKey;
  reg.free;
  result :=  not ((AutoRunSetting and (1 shl 5)) <> 0);
end;

procedure SetCdAutoRun(bOn : bool);
var
  reg: TRegistry;
  AutoRunSetting : integer;
begin
  reg := TRegistry.Create;
  reg.RootKey := HKEY_CURRENT_USER;
  reg.LazyWrite := false;
  reg.OpenKey(
    'Software\Microsoft\Windows\CurrentVersion\Policies\Explorer',
              false);
  AutoRunSetting:=reg.ReadBinaryData('NoDriveTypeAutoRun',
                     AutoRunSetting ,
                     sizeof(AutoRunSetting));

  if bOn then
    AutoRunSetting := AutoRunSetting and not (1 shl 5)
  else
    AutoRunSetting := AutoRunSetting or (1 shl 5);
  reg.WriteInteger('NoDriveTypeAutoRun',AutoRunSetting);
  reg.CloseKey;
  reg.free;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  if IsCdAutoRunOn then
    RadioGroup1.ItemIndex:=0
  else
    RadioGroup1.ItemIndex:=1;
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
  if RadioGroup1.ItemIndex=0 then
    SetCdAutoRun(True)
  else
    SetCdAutoRun(False);
end;

end.