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图1 主界面 |
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; |
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. |
图2 程序运行的初始画面 |
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