我正好有一个例子,你看看吧,要源码就留EMAIL<br>unit Unit1;<br><br>interface<br><br>uses<br> Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,<br> Dialogs, StdCtrls, Shlobj, Activex, TFlatMemoUnit, TFlatSpeedButtonUnit,<br> TFlatAnimWndUnit, TFlatTitlebarUnit;<br><br>const<br> SHCNE_RENAMEITEM = $1;<br> SHCNE_CREATE = $2;<br> SHCNE_DELETE = $4;<br> SHCNE_MKDIR = $8;<br> SHCNE_RMDIR = $10;<br> SHCNE_MEDIAINSERTED = $20;<br> SHCNE_MEDIAREMOVED = $40;<br> SHCNE_DRIVEREMOVED = $80;<br> SHCNE_DRIVEADD = $100;<br> SHCNE_NETSHARE = $200;<br> SHCNE_NETUNSHARE = $400;<br> SHCNE_ATTRIBUTES = $800;<br> SHCNE_UPDATEDIR = $1000;<br> SHCNE_UPDATEITEM = $2000;<br> SHCNE_SERVERDISCONNECT = $4000;<br> SHCNE_UPDATEIMAGE = $8000;<br> SHCNE_DRIVEADDGUI = $10000;<br> SHCNE_RENAMEFOLDER = $20000;<br> SHCNE_FREESPACE = $40000;<br> SHCNE_ASSOCCHANGED = $8000000;<br> SHCNE_DISKEVENTS = $2381F;<br> SHCNE_GLOBALEVENTS = $C0581E0;<br> SHCNE_ALLEVENTS = $7FFFFFFF;<br> SHCNE_INTERRUPT = $80000000;<br> SHCNF_IDLIST = 0;<br> // LPITEMIDLIST<br> SHCNF_PATHA = $1;<br> // path name<br> SHCNF_PRINTERA = $2;<br> // printer friendly name<br> SHCNF_DWORD = $3;<br> // DWORD<br> SHCNF_PATHW = $5;<br> // path name<br> SHCNF_PRINTERW = $6;<br> // printer friendly name<br> SHCNF_TYPE = $FF;<br> SHCNF_FLUSH = $1000;<br> SHCNF_FLUSHNOWAIT = $2000;<br> SHCNF_PATH = SHCNF_PATHW;<br> SHCNF_PRINTER = SHCNF_PRINTERW;<br> WM_SHNOTIFY = $401;<br> NOERROR = 0;<br>type<br> TForm1 = class(TForm)<br> Memo1: TFlatMemo;<br> FlatSBRegister: TFlatSpeedButton;<br> FlatSBUnRegister: TFlatSpeedButton;<br> FlatSBSave: TFlatSpeedButton;<br> FlatSBQuit: TFlatSpeedButton;<br> Label1: TLabel;<br> procedure FormClose(Sender: TObject; var Action: TCloseAction);<br> procedure FlatSBRegisterClick(Sender: TObject);<br> procedure FlatSBUnRegisterClick(Sender: TObject);<br> procedure FlatSBQuitClick(Sender: TObject);<br> procedure FlatSBSaveClick(Sender: TObject);<br> private<br> procedure WMShellReg(var Msg : TMessage); Message WM_SHNOTIFY;<br> { Private declarations }<br> public<br> { Public declarations }<br> end;<br> <br> type PSHNOTIFYSTRUCT=^SHNOTIFYSTRUCT;<br> SHNOTIFYSTRUCT = record<br> dwItem1 : PItemIDList;<br> dwItem2 : PItemIDList;<br> end;<br><br> Type PSHFileInfoByte=^SHFileInfoByte;<br> _SHFileInfoByte = record<br> hIcon :Integer;<br> iIcon :Integer;<br> dwAttributes : Integer;<br> szDisplayName : array [0..259] of char;<br> szTypeName : array [0..79] of char;<br> end;<br><br> SHFileInfoByte=_SHFileInfoByte;<br><br> Type PIDLSTRUCT = ^IDLSTRUCT;<br> _IDLSTRUCT = record<br> pidl : PItemIDList;<br> bWatchSubFolders : Integer;<br> end;<br> IDLSTRUCT =_IDLSTRUCT;<br><br> function SHNotify_Register(hWnd : Integer) : Bool;<br> function SHNotify_UnRegister:Bool;<br> function SHEventName(strPath1,strPath2:string;lParam:Integer):string;<br> Function SHChangeNotifyDeregister(hNotify:integer):integer;stdcall; external 'Shell32.dll' index 4;<br> Function SHChangeNotifyRegister(hWnd,uFlags,dwEventID,uMSG,cItems:LongWord;<br> lpps
IDLSTRUCT):integer;stdcall;external 'Shell32.dll' index 2;<br> Function SHGetFileInfoPidl(pidl : PItemIDList;<br> dwFileAttributes : Integer;<br> psfib : PSHFILEINFOBYTE;<br> cbFileInfo : Integer;<br> uFlags : Integer):Integer;stdcall;<br> external 'Shell32.dll' name 'SHGetFileInfoA';<br>var<br> Form1: TForm1;<br> m_hSHNotify : Integer;<br> m_pidlDesktop : PItemIDList;<br>implementation<br><br>{$R *.dfm}<br>function SHEventName(strPath1,strPath2:string;lParam:Integer):string;<br>var<br> sEvent:String;<br>begin<br> case lParam of //根据参数设置提示消息<br> SHCNE_RENAMEITEM: sEvent := '重命名文件'+strPath1+'为'+strpath2;<br> SHCNE_CREATE: sEvent := '建立文件 文件名:'+strPath1;<br> SHCNE_DELETE: sEvent := '删除文件 文件名:'+strPath1;<br> SHCNE_MKDIR: sEvent := '新建目录 目录名:'+strPath1;<br> SHCNE_RMDIR: sEvent := '删除目录 目录名:'+strPath1;<br> SHCNE_MEDIAINSERTED: sEvent := strPath1+'中插入可移动存储介质';<br> SHCNE_MEDIAREMOVED: sEvent := strPath1+'中移去可移动存储介质'+strPath1+' '+strpath2;<br> SHCNE_DRIVEREMOVED: sEvent := '移去驱动器'+strPath1;<br> SHCNE_DRIVEADD: sEvent := '添加驱动器'+strPath1;<br> SHCNE_NETSHARE: sEvent := '改变目录'+strPath1+'的共享属性';<br> SHCNE_ATTRIBUTES: sEvent := '改变文件目录属性 文件名'+strPath1;<br> SHCNE_UPDATEDIR: sEvent := '更新目录'+strPath1;<br> SHCNE_UPDATEITEM: sEvent := '更新文件 文件名:'+strPath1;<br> SHCNE_SERVERDISCONNECT: sEvent := '断开与服务器的连接'+strPath1+' '+strpath2;<br> SHCNE_UPDATEIMAGE: sEvent := 'SHCNE_UPDATEIMAGE';<br> SHCNE_DRIVEADDGUI: sEvent := 'SHCNE_DRIVEADDGUI';<br> SHCNE_RENAMEFOLDER: sEvent := '重命名文件夹'+strPath1+'为'+strpath2;<br> SHCNE_FREESPACE: sEvent := '磁盘空间大小改变';<br> SHCNE_ASSOCCHANGED: sEvent := '改变文件关联';<br> else<br> sEvent:='未知操作'+IntToStr(lParam);<br> end;<br> Result:=sEvent;<br>end;<br><br><br>function SHNotify_Register(hWnd : Integer) : Bool;<br>var<br>// ps
IDLSTRUCT;<br> ps : _IDLSTRUCT;<br>begin<br>{$R-}<br> Result:=False;<br> If m_hSHNotify = 0 then begin<br> //获取桌面文件夹的Pidl<br> if SHGetSpecialFolderLocation(0, CSIDL_DESKTOP,m_pidlDesktop) <> NOERROR then<br> Form1.close;<br> if Boolean(m_pidlDesktop) then begin<br> ps.bWatchSubFolders := 1;<br> ps.pidl := m_pidlDesktop;<br> // 利用SHChangeNotifyRegister函数注册系统消息处理<br> m_hSHNotify := SHChangeNotifyRegister(hWnd, (SHCNF_TYPE Or SHCNF_IDLIST),<br> (SHCNE_ALLEVENTS Or SHCNE_INTERRUPT),<br> WM_SHNOTIFY, 1, @ps);<br> Result := Boolean(m_hSHNotify);<br> end<br> Else<br> // 如果出现错误就使用 CoTaskMemFree函数来释放句柄<br> CoTaskMemFree(m_pidlDesktop);<br>End;<br>{$R+}<br>end;<br><br>function SHNotify_UnRegister:Bool;<br>begin<br> Result:=False;<br> If Boolean(m_hSHNotify) Then<br> //取消系统消息监视,同时释放桌面的Pidl<br> If Boolean(SHChangeNotifyDeregister(m_hSHNotify)) Then<br> begin<br> {$R-}<br> m_hSHNotify := 0;<br> CoTaskMemFree(m_pidlDesktop);<br> Result := True;<br> {$R-}<br> End;<br>end;<br><br>procedure TForm1.WMShellReg(var Msg:TMessage); //系统消息处理函数<br>var<br> strPath1,strPath2 : String;<br> charPath :array[0..259]of char;<br> pidlItem : PSHNOTIFYSTRUCT;<br>begin<br> pidlItem:=PSHNOTIFYSTRUCT(Msg.wParam);<br> //获得系统消息相关得路径<br> SHGetPathFromIDList(pidlItem.dwItem1,charPath);<br> strPath1:=charPath;<br> SHGetPathFromIDList(pidlItem.dwItem2,charPath);<br> strPath2:=charPath;<br> Memo1.Lines.Add(SHEvEntName(strPath1,strPath2,Msg.lParam));<br>end;<br><br>procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);<br>begin<br> if Boolean(m_pidlDesktop) then<br> SHNotify_Unregister;<br>end;<br><br>procedure TForm1.FlatSBRegisterClick(Sender: TObject);<br>begin<br> m_hSHNotify:=0;<br> if SHNotify_Register(Form1.Handle) then begin //注册Shell监视<br> Application.MessageBox('Shell监视程序成功注册!', '信息', 0);<br> FlatSBRegister.Enabled := False;<br> end<br> else<br> Application.MessageBox('Shell监视程序注册失败!', '信息', 0);<br>end;<br><br>procedure TForm1.FlatSBUnRegisterClick(Sender: TObject);<br>begin<br> if Boolean(m_pidlDesktop) then<br> SHNotify_Unregister;<br> FlatSBRegister.Enabled := True; <br>end;<br><br>procedure TForm1.FlatSBQuitClick(Sender: TObject);<br>begin<br> Close();<br>end;<br><br>procedure TForm1.FlatSBSaveClick(Sender: TObject);<br>begin<br> Memo1.Lines.SaveToFile('c:/tmp.txt'); <br>end;<br><br>end.