const
SHERB_NOCONFIRMATION = $00000001 ;
SHERB_NOPROGRESSUI = $00000002 ;
SHERB_NOSOUND = $00000004 ;
type
TSHEmptyRecycleBin=
function(Wnd:HWND;LPCTSTR:PChar;DWORD:Word):Integer;stdcall;

procedure TForm1.Button1Click(Sender: TObject);
var
　SHEmptyRecycleBin:TSHEmptyRecycleBin;
　LibHandle:THandle;
begin
　LibHandle := LoadLibrary(PChar(’Shell32.dll’)) ;
　if LibHandle <> 0 then
　begin
@SHEmptyRecycleBin := GetProcAddress(LibHandle, ’SHEmptyRecycleBinA’);
　end
　else
　begin
MessageDlg(’Failed to load Shell32.dll.’, mtError, [mbOK], 0);
Exit ;
　end ;
　if @SHEmptyRecycleBin <> nil then
　begin
SHEmptyRecycleBin(Application.Handle,’’,SHERB_NOCONFIRMATION or
SHERB_NOPROGRESSUI or SHERB_NOSOUND) ;
　end;
　FreeLibrary(LibHandle);
　@SHEmptyRecycleBin := nil ;
end; 
程序代码如下：
unit Unit1;

interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;

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

var
　Form1: TForm1;
　implementation
const
　SHERB_NOCONFIRMATION = $00000001 ;
　SHERB_NOPROGRESSUI = $00000002 ;
　SHERB_NOSOUND = $00000004 ;
type
　TSHEmptyRecycleBin=function(Wnd:HWND;LPCTSTR:PChar;DWORD:Word):Integer;stdcall;

　{$R *.dfm}
　procedure TForm1.Button1Click(Sender: TObject);
var
　SHEmptyRecycleBin:TSHEmptyRecycleBin;
　LibHandle:THandle;
begin
　LibHandle := LoadLibrary(PChar(’Shell32.dll’)) ;
　if LibHandle <> 0 then
　begin
@SHEmptyRecycleBin := GetProcAddress(LibHandle, ’SHEmptyRecycleBinA’);
　end
　else
　begin
MessageDlg(’Failed to load Shell32.dll.’, mtError, [mbOK], 0);
Exit ;
　end ;

　if @SHEmptyRecycleBin <> nil then
　begin
SHEmptyRecycleBin(Application.Handle,’’,
    SHERB_NOCONFIRMATION or SHERB_NOPROGRESSUI or SHERB_NOSOUND) ;
　end;
　FreeLibrary(LibHandle);
　@SHEmptyRecycleBin := nil ;
　end;
end.