程序是否可以监控某个磁盘发生了写盘事件? 比如怎么知道是否有程序正在或曾经往硬盘/软盘上写文件呢? 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 正在写文件,可以通过HOOK CreatFile这类API,曾经写过,天知道,你问硬盘去吧 肯定可以三.网上有代码的,那个代码里有读写文件,改名文件,等的操作记录,是通过拦截WINDOWS消息来搞定的.还可以.你可以找一下. 栏截消息好像是可以搞定。不用HOOK钩子。 当一个固定文件夹下多了一个文件,怎样让程序立即知道,并作出响应! 主要解答者: zswangII 提交人: hthunter 感谢: sailer_shi、xinshiji、cqbonny、dyzg 审核者: aiirii 社区对应贴子: 查看 A : 当某个固定目录下,多了一个文件,怎样让程序立即知道,并作出响应!最好不要用Ttimer! --------------------------------------------------------------- 回复人: zswangII(伴水清清)(职业清洁工) ( ) 信誉:110 2003-12-29 16:52:28 得分:150 //通过ShellAPI函数来实现比较科学~~ //注册一个事件响应~~ //代码如下~~ unit TestNotify; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, ShlObj, ShellAPI; const WM_SHNOTIFY = WM_USER + 10; type TFormTestNotify = class(TForm) MemoNotifyLog: TMemo; procedure FormCreate(Sender: TObject); procedure FormDestroy(Sender: TObject); private { Private declarations } FNotifyHandle: THandle; procedure WMSHNOTIFY(var Msg: TMessage); message WM_SHNOTIFY; public { Public declarations } end; var FormTestNotify: TFormTestNotify; implementation {$R *.dfm} type NOTIFYREGISTER = packed record pidlPath: PItemIDList; bWatchSubtree: BOOL; end; PNotifyRegister = ^NOTIFYREGISTER; {$WARNINGS OFF} function SHChangeNotifyRegister(hWnd: HWND; dwFlags: Integer; wEventMask: Cardinal; uMsg: UINT; cItems: Integer; lpItems: PNotifyRegister): HWND; stdcall; external Shell32 index 2; function SHChangeNotifyDeregister(hWnd: HWND): Boolean; stdcall; external Shell32 index 4; function SHILCreateFromPath(pszPath: PChar; ppidl: PItemIDList; rgflnOut: PDWORD): HResult; stdcall; external Shell32 index 28; {$WARNINGS ON} procedure TFormTestNotify.FormCreate(Sender: TObject); var vNotifyRegister: NOTIFYREGISTER; vAttributes: WORD; vItemIDList: PItemIDList; begin SHILCreatefromPath('c:\temp', @vItemIDList, @vAttributes); vNotifyRegister.pidlPath := vItemIDList; vNotifyRegister.bWatchSubtree := True; FNotifyHandle := SHChangeNotifyRegister(Handle, SHCNF_TYPE or SHCNF_IDLIST, SHCNE_ALLEVENTS or SHCNE_INTERRUPT, WM_SHNOTIFY, 1, @vNotifyRegister); MemoNotifyLog.Clear; end; procedure TFormTestNotify.FormDestroy(Sender: TObject); begin SHChangeNotifyDeregister(FNotifyHandle); end; procedure TFormTestNotify.WMSHNOTIFY(var Msg: TMessage); type PSHNOTIFYSTRUCT = ^SHNOTIFYSTRUCT; SHNOTIFYSTRUCT = packed record dwItem1: PItemIDList; dwItem2: PItemIDList; end; var vBuffer: array[0..MAX_PATH] of Char; pidlItem: PSHNOTIFYSTRUCT; S: string; begin pidlItem := PSHNOTIFYSTRUCT(Msg.wParam); SHGetPathFromIDList(pidlItem.dwItem1, vBuffer); S := vBuffer; SHGetPathFromIDList(pidlItem.dwItem2, vBuffer); case Msg.lParam of //根据参数设置提示消息 SHCNE_RENAMEITEM: S := '重命名文件' + S + '为' + vBuffer; SHCNE_CREATE: S := '建立文件 文件名:' + S; SHCNE_DELETE: S := '删除文件 文件名:' + S; SHCNE_MKDIR: S := '新建目录 目录名:' + S; SHCNE_RMDIR: S := '删除目录 目录名:' + S; SHCNE_MEDIAINSERTED: S := S + '中插入可移动存储介质'; SHCNE_MEDIAREMOVED: S := S + '中移去可移动存储介质' + S + ' ' + vBuffer; SHCNE_DRIVEREMOVED: S := '移去驱动器' + S; SHCNE_DRIVEADD: S := '添加驱动器' + S; SHCNE_NETSHARE: S := '改变目录' + S + '的共享属性'; SHCNE_ATTRIBUTES: S := '改变文件目录属性 文件名' + S; SHCNE_UPDATEDIR: S := '更新目录' + S; SHCNE_UPDATEITEM: S := '更新文件 文件名:' + S; SHCNE_SERVERDISCONNECT: S := '断开与服务器的连接' + S + ' ' + vBuffer; SHCNE_UPDATEIMAGE: S := 'SHCNE_UPDATEIMAGE'; SHCNE_DRIVEADDGUI: S := 'SHCNE_DRIVEADDGUI'; SHCNE_RENAMEFOLDER: S := '重命名文件夹' + S + '为' + vBuffer; SHCNE_FREESPACE: S := '磁盘空间大小改变'; SHCNE_ASSOCCHANGED: S := '改变文件关联'; else S := '未知操作' + IntToStr(Msg.lParam); end; MemoNotifyLog.Lines.Add(S); end; end. 目录监控 ,上边的代码监控的项目比较多,反应有点慢。如果做简单监控用线程加FindFirstFileA函数就可以了,反应快。 这个代码的确可以监视磁盘变化,但是存在的问题是:我希望监视的目录是'c:\temp',但是代码实际执行的效果是别的目录、甚至别的磁盘驱动器发生了事件也会被监视,这是怎么回事?哪的问题? 如何远程往数据库里面写入数据 tColor tString 的问题 问个关于读取txt文件的问题 我如何使用ADO的方式连接ACCESS数据库? 怎么样编写打印程序 我想修改tquery的本身,使其在BEFOREOPEN前先执行一个showmessage('1');怎么实现呢 超级^oo^问题,麻烦大家了 海外对Google被封的反映 答者給分.關于建立遠程數据模塊(多層架構)的問題. 高分!懂汇编和bios的高手请进! 在Delphi中如何锁定任务栏? 《thinking in Delphi》这本书出版了没?
你可以找一下.
主要解答者: zswangII 提交人: hthunter
感谢: sailer_shi、xinshiji、cqbonny、dyzg
审核者: aiirii 社区对应贴子: 查看
A : 当某个固定目录下,多了一个文件,怎样让程序立即知道,并作出响应!最好不要用Ttimer!
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回复人: zswangII(伴水清清)(职业清洁工) ( ) 信誉:110 2003-12-29 16:52:28 得分:150
//通过ShellAPI函数来实现比较科学~~
//注册一个事件响应~~
//代码如下~~
unit TestNotify;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, ShlObj, ShellAPI;
const
WM_SHNOTIFY = WM_USER + 10;
type
TFormTestNotify = class(TForm)
MemoNotifyLog: TMemo;
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
private
{ Private declarations }
FNotifyHandle: THandle;
procedure WMSHNOTIFY(var Msg: TMessage); message WM_SHNOTIFY;
public
{ Public declarations }
end;
var
FormTestNotify: TFormTestNotify;
implementation
{$R *.dfm}
type
NOTIFYREGISTER = packed record
pidlPath: PItemIDList;
bWatchSubtree: BOOL;
end;
PNotifyRegister = ^NOTIFYREGISTER;
{$WARNINGS OFF}
function SHChangeNotifyRegister(hWnd: HWND; dwFlags: Integer;
wEventMask: Cardinal; uMsg: UINT; cItems: Integer;
lpItems: PNotifyRegister): HWND; stdcall; external Shell32 index 2;
function SHChangeNotifyDeregister(hWnd: HWND): Boolean; stdcall;
external Shell32 index 4;
function SHILCreateFromPath(pszPath: PChar; ppidl: PItemIDList;
rgflnOut: PDWORD): HResult; stdcall; external Shell32 index 28;
{$WARNINGS ON}
procedure TFormTestNotify.FormCreate(Sender: TObject);
var
vNotifyRegister: NOTIFYREGISTER;
vAttributes: WORD;
vItemIDList: PItemIDList;
begin
SHILCreatefromPath('c:\temp', @vItemIDList, @vAttributes);
vNotifyRegister.pidlPath := vItemIDList;
vNotifyRegister.bWatchSubtree := True;
FNotifyHandle := SHChangeNotifyRegister(Handle,
SHCNF_TYPE or SHCNF_IDLIST,
SHCNE_ALLEVENTS or SHCNE_INTERRUPT, WM_SHNOTIFY, 1, @vNotifyRegister);
MemoNotifyLog.Clear;
end;
procedure TFormTestNotify.FormDestroy(Sender: TObject);
begin
SHChangeNotifyDeregister(FNotifyHandle);
end;
procedure TFormTestNotify.WMSHNOTIFY(var Msg: TMessage);
type
PSHNOTIFYSTRUCT = ^SHNOTIFYSTRUCT;
SHNOTIFYSTRUCT = packed record
dwItem1: PItemIDList;
dwItem2: PItemIDList;
end;
var
vBuffer: array[0..MAX_PATH] of Char;
pidlItem: PSHNOTIFYSTRUCT;
S: string;
begin
pidlItem := PSHNOTIFYSTRUCT(Msg.wParam);
SHGetPathFromIDList(pidlItem.dwItem1, vBuffer);
S := vBuffer;
SHGetPathFromIDList(pidlItem.dwItem2, vBuffer);
case Msg.lParam of //根据参数设置提示消息
SHCNE_RENAMEITEM: S := '重命名文件' + S + '为' + vBuffer;
SHCNE_CREATE: S := '建立文件 文件名:' + S;
SHCNE_DELETE: S := '删除文件 文件名:' + S;
SHCNE_MKDIR: S := '新建目录 目录名:' + S;
SHCNE_RMDIR: S := '删除目录 目录名:' + S;
SHCNE_MEDIAINSERTED: S := S + '中插入可移动存储介质';
SHCNE_MEDIAREMOVED: S := S + '中移去可移动存储介质' + S + ' ' + vBuffer;
SHCNE_DRIVEREMOVED: S := '移去驱动器' + S;
SHCNE_DRIVEADD: S := '添加驱动器' + S;
SHCNE_NETSHARE: S := '改变目录' + S + '的共享属性';
SHCNE_ATTRIBUTES: S := '改变文件目录属性 文件名' + S;
SHCNE_UPDATEDIR: S := '更新目录' + S;
SHCNE_UPDATEITEM: S := '更新文件 文件名:' + S;
SHCNE_SERVERDISCONNECT: S := '断开与服务器的连接' + S + ' ' + vBuffer;
SHCNE_UPDATEIMAGE: S := 'SHCNE_UPDATEIMAGE';
SHCNE_DRIVEADDGUI: S := 'SHCNE_DRIVEADDGUI';
SHCNE_RENAMEFOLDER: S := '重命名文件夹' + S + '为' + vBuffer;
SHCNE_FREESPACE: S := '磁盘空间大小改变';
SHCNE_ASSOCCHANGED: S := '改变文件关联';
else S := '未知操作' + IntToStr(Msg.lParam);
end;
MemoNotifyLog.Lines.Add(S);
end;
end.