u00401.pas

Delphi编程五大妙招源程序

unit U00401;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, ShlObj, ActiveX, ComObj;

type
  TForm1 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation


{$R *.DFM}

procedure TForm1.Button1Click(Sender: TObject);
var
  tmpObject : IUnknown;
  tmpSLink : IShellLink;
  tmpPFile : IPersistFile;
  PIDL : PItemIDList;
  StartupDirectory : array[0..MAX_PATH] of Char;
  StartupFilename : String;
  LinkFilename : WideString;
begin
  StartupFilename := 'c:\windows\Calc.exe';
  tmpObject := CreateComObject(CLSID_ShellLink);
  tmpSLink := tmpObject as IShellLink;
  tmpPFile := tmpObject as IPersistFile;
  tmpSLink.SetPath(pChar(StartupFilename));
  tmpSLink.SetWorkingDirectory(pChar(ExtractFilePath(StartupFilename)));
  SHGetSpecialFolderLocation(0,
                             CSIDL_DESKTOPDIRECTORY,
                             PIDL);
  SHGetPathFromIDList(PIDL, StartupDirectory);
  LinkFilename := StartupDirectory + '\计算器.lnk';
  tmpPFile.Save(pWChar(LinkFilename),FALSE);
end;

procedure TForm1.Button2Click(Sender: TObject);
var
  tmp : integer;
begin
  tmp :=0;
  SystemParametersInfo(SPI_SETFASTTASKSWITCH, 1, @tmp, 0); //屏蔽 Alt-Tab
  SystemParametersInfo(SPI_SCREENSAVERRUNNING, 1, @tmp, 0); //屏蔽 Ctrl-Alt-Del　　
end;

procedure TForm1.Button3Click(Sender: TObject);
var
  tmp : integer;
begin
  tmp :=0;
  SystemParametersInfo(SPI_SETFASTTASKSWITCH, 0, @tmp, 0); //打开 Alt-Tab
  SystemParametersInfo(SPI_SCREENSAVERRUNNING, 0, @tmp, 0); //打开 Ctrl-Alt-Del　　
end;

end.