建立快捷方式的函数: CreateShortcut - 非常实用、特别方便

unit Unit1;interfaceuses  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,  Dialogs, StdCtrls;type  TForm1 = class(TForm)    Button1: TButton;    Button2: TButton;    Button3: TButton;    Button4: TButton;    procedure Button1Click(Sender: TObject);    procedure Button2Click(Sender: TObject);    procedure Button3Click(Sender: TObject);    procedure Button4Click(Sender: TObject);  end;var  Form1: TForm1;implementation{$R *.dfm}uses  ShlObj, ActiveX, ComObj; {该函数使用的单元}{函数说明:}{第一个参数是要建立快捷方式的文件, 这是必须的; 其他都是可选参数}{第二个参数是快捷方式名称, 缺省使用参数一的文件名}{第三个参数是指定目的文件夹, 缺省目的是桌面; 如果有第四个参数, 该参数将被忽略}{第四个参数是用常数的方式指定目的文件夹; 该系列常数定义在 ShlObj 单元, CSIDL_ 打头}function CreateShortcut(Exe:string; Lnk:string = ''; Dir:string = ''; ID:Integer = -1):Boolean;var  IObj: IUnknown;  ILnk: IShellLink;  IPFile: IPersistFile;  PIDL: PItemIDList;  InFolder: array[0..MAX_PATH] of Char;  LinkFileName: WideString;begin  Result := False;  if not FileExists(Exe) then Exit;  if Lnk = '' then Lnk := ChangeFileExt(ExtractFileName(Exe), '');  IObj := CreateComObject(CLSID_ShellLink);  ILnk := IObj as IShellLink;  ILnk.SetPath(PChar(Exe));  ILnk.SetWorkingDirectory(PChar(ExtractFilePath(Exe)));  if (Dir = '') and (ID = -1) then ID := CSIDL_DESKTOP;  if ID > -1 then  begin    SHGetSpecialFolderLocation(0, ID, PIDL);    SHGetPathFromIDList(PIDL, InFolder);    LinkFileName := Format('%s\%s.lnk', [InFolder, Lnk]);  end else  begin    Dir := ExcludeTrailingPathDelimiter(Dir);    if not DirectoryExists(Dir) then Exit;    LinkFileName := Format('%s\%s.lnk', [Dir, Lnk]);  end;  IPFile := IObj as IPersistFile;  if IPFile.Save(PWideChar(LinkFileName), False) = 0 then Result := True;end; {CreateShortcut 函数结束}{测试 1: 把当前程序在桌面上建立快捷方式}procedure TForm1.Button1Click(Sender: TObject);begin  CreateShortcut(Application.ExeName);end;{测试 2: 在桌面上建立快捷方式, 同时指定快捷方式名称}procedure TForm1.Button2Click(Sender: TObject);begin  CreateShortcut(Application.ExeName, 'NewLinkName');end;{测试 3: 在 C:\ 下建立快捷方式}procedure TForm1.Button3Click(Sender: TObject);begin  CreateShortcut(Application.ExeName, '', 'C:\');end;{测试 3: 在开始菜单的程序文件夹下建立快捷方式}procedure TForm1.Button4Click(Sender: TObject);begin  CreateShortcut(Application.ExeName, '', '', CSIDL_PROGRAMS);end;end.