該功能在delphi XE + XP 下測試通過 O2DirSpy.pas (該單元獲取自網絡) [delphi] {====================================================================} { TOxygenDirectorySpy Component, v1.6 c 2000-2001 Oxygen Software } {--------------------------------------------------------------------} { Written by Oleg Fyodorov, [email protected] } { http://www.oxygensoftware.com } {====================================================================} unit O2DirSpy; interface uses Classes, Controls, Windows, SysUtils, ShellApi, Dialogs, Messages, FileCtrl; type TDirectoryChangeType = (ctNone, ctAttributes, ctSize, ctCreationTime, ctLastModificationTime, ctLastAccessTime, ctLastTime, ctCreate, ctRemove); TOxygenDirectorySpy = class; TDirectoryChangeRecord = record Directory : String; FileFlag : Boolean; // When True, ChangeType applies to a file; False - ChangeType applies to Directory Name : String; // Name of changed file/directory OldTime, NewTime : TDateTime; // Significant only when ChangeType is one of ctCreationTime, ctLastModificationTime, ctLastAccessTime, ctLastTime OldAttributes, NewAttributes : DWord; // Significant only when ChangeType is ctAttributes OldSize, NewSize : DWord; // Significant only when ChangeType is ctSize ChangeType : TDirectoryChangeType; // Describes a change type (creation, removing etc.) end; TSpySearchRec = record Time: Integer; Size: Integer; Attr: Integer; dwFileAttributes: DWORD; ftCreationTime: TFileTime; ftLastAccessTime: TFileTime; ftLastWriteTime: TFileTime; nFileSizeHigh: DWORD; nFileSizeLow: DWORD; end; TFileData = class private FSearchRec : TSpySearchRec; Name: TFileName; FFound : Boolean; public constructor Create; procedure Free; end; TFileDataList = class(TStringList) private function NewFileData(const FileName : String; sr : TSearchRec) : TFileData; function GetFoundCount : Integer; public property FoundCount : Integer read GetFoundCount; destructor Destroy; override; function AddFileData(FileData : TFileData) : Integer; function AddSearchRec(const Directory : String; sr : TSearchRec) : Integer; procedure Delete(Index : Integer); override; procedure Clear; override; procedure SetFound(Value : Boolean); end; TReadDirChangesThread = class(TThread) private FOwner : TOxygenDirectorySpy; FDirectories : TStringList; FHandles : TList; FChangeRecord : TDirectoryChangeRecord; FFilesData, FTempFilesData : TFileDataList; pHandles : PWOHandleArray; procedure ReleaseHandle; procedure AllocateHandle; procedure ReadDirectories(DestData : TFileDataList); procedure CompareSearchRec(var srOld, srNew : TSpySearchRec); protected procedure Execute; override; procedure Notify; public constructor Create(Owner : TOxygenDirectorySpy); destructor Destroy; override; procedure Reset; end; TChangeDirectoryEvent = procedure (Sender : TObject; ChangeRecord : TDirectoryChangeRecord) of object; TOxygenDirectorySpy = class(TComponent) private FThread : TReadDirChangesThread; FEnabled, FWatchSubTree : Boolean; FDirectories : TStrings; FOnChangeDirectory : TChangeDirectoryEvent; procedure SetEnabled(const Value : Boolean); procedure CheckDirectories; procedure SetDirectories(const Value : TStrings); procedure SetWatchSubTree(const Value : Boolean); protected procedure DoChangeDirectory(ChangeRecord : TDirectoryChangeRecord); published property Enabled : Boolean read FEnabled write SetEnabled; property Directories : TStrings read FDirectories write SetDirectories; property WatchSubTree : Boolean read FWatchSubTree write SetWatchSubTree; property OnChangeDirectory : TChangeDirectoryEvent read FOnChangeDirectory write FOnChangeDirectory; public constructor Create(AOwner : TComponent); override; destructor Destroy; override; end; function ChangeRecord2String(ChangeRecord : TDirectoryChangeRecord) : String; procedure Register; implementation function ChangeRecord2String(ChangeRecord : TDirectoryChangeRecord) : String; var s : String; begin Result := 'No changes'; if ChangeRecord.FileFlag then s := 'File ' else s := 'Directory '; s := s + '"' + ChangeRecord.Name + '"'; case ChangeRecord.ChangeType of ctAttributes : Result := s + ' attributes are changed. Old: ' + IntToHex(ChangeRecord.OldAttributes,8) + ', New: ' + IntToHex(ChangeRecord.NewAttributes,8); ctSize : Result := s + ' size is changed. Old: ' + IntToStr(ChangeRecord.OldSize) + ', New: ' + IntToStr(ChangeRecord.NewSize); ctCreationTime : Result := s + ' creation time is changed. Old: ' + DateTimeToStr(ChangeRecord.OldTime) + ', New: ' + DateTimeToStr(ChangeRecord.NewTime); ctLastModificationTime : Result := s + ' last modification time is changed. Old: ' + DateTimeToStr(ChangeRecord.OldTime) + ', New: ' + DateTimeToStr(ChangeRecord.NewTime); ctLastAccessTime : Result := s + ' last access time is changed. Old: ' + DateTimeToStr(ChangeRecord.OldTime) + ', New: ' + DateTimeToStr(ChangeRecord.NewTime); ctLastTime : Result := s + ' time is changed. Old: ' + DateTimeToStr(ChangeRecord.OldTime) + ', New: ' + DateTimeToStr(ChangeRecord.NewTime); ctCreate : Result := s + ' is created'; ctRemove : Result := s + ' is deleted'; end; end; function SameSystemTime(Time1, Time2 : TSystemTime) : Boolean; begin Result := ((Time1.wYear = Time2.wYear) and (Time1.wMonth = Time2.wMonth) and (Time1.wDay = Time2.wDay) and (Time1.wHour = Time2.wHour) and (Time1.wMinute = Time2.wMinute) and (Time1.wSecond = Time2.wSecond) and (Time1.wMilliseconds = Time2.wMilliseconds)); end; function ReplaceText(s, SourceText, DestText: String):String; var st,res:string; i:Integer; begin ReplaceText:=''; if ((s='') or (SourceText='')) then Exit; st:=s; res:=''; i:=Pos(SourceText,s); while (i>0) do begin res:=res+Copy(st,1,i-1)+DestText; Delete(st,1,(i+Length(SourceText)-1)); i:=Pos(SourceText,st); end; res:=res+st; ReplaceText:=res; end; /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// // TFileData /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// constructor TFileData.Create; begin inherited Create; Name := ''; FillChar(FSearchRec,SizeOf(FSearchRec),0); FFound := False; end; procedure TFileData.Free; begin Name := ''; //Finalize(FSearchRec); inherited Free; end; /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// // TFileDataList /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// destructor TFileDataList.Destroy; begin Clear; inherited Destroy;; end; function TFileDataList.NewFileData(const FileName : String; sr : TSearchRec) : TFileData; begin Result := TFileData.Create; Result.Name := FileName; with Result.FSearchRec do begin Time := sr.Time; Size := sr.Size; Attr := sr.Attr; dwFileAttributes := sr.FindData.dwFileAttributes; ftCreationTime := sr.FindData.ftCreationTime; ftLastAccessTime := sr.FindData.ftLastAccessTime; ftLastWriteTime := sr.FindData.ftLastWriteTime; nFileSizeHigh := sr.FindData.nFileSizeHigh; nFileSizeLow := sr.FindData.nFileSizeLow; end; end; function TFileDataList.GetFoundCount : Integer; var i : Integer; begin Result := 0; for i := 1 to Count do if TFileData(Objects[i-1]).FFound then Inc(Result); end; function TFileDataList.AddFileData(FileData : TFileData) : Integer; var fd : TFileData; begin fd := TFileData.Create; fd.Name := FileData.Name; fd.FSearchRec := FileData.FSearchRec; Result := AddObject(fd.Name, fd); end; function TFileDataList.AddSearchRec(const Directory : String; sr : TSearchRec) : Integer; var FileName : String; begin if (Directory <> '') then FileName := ReplaceText(Directory + '\' + sr.Name,'\\','\') else FileName := sr.Name; Result := AddObject(FileName, NewFileData(FileName, sr)); end; procedure TFileDataList.Delete(Index : Integer); begin TFileData(Objects[Index]).Free; inherited Delete(Index); end; procedure TFileDataList.Clear; begin while (Count > 0) do Delete(0); inherited Clear; end; procedure TFileDataList.SetFound(Value : Boolean); var i : Integer; begin for i := 1 to Count do TFileData(Objects[i-1]).FFound := Value; end; function CompareMem(fpBlock1, fpBlock2: Pointer; Size: Cardinal): Boolean; assembler; asm PUSH ESI PUSH EDI MOV ESI,fpBlock1 MOV EDI,fpBlock2 MOV ECX,Size MOV EDX,ECX XOR EAX,EAX AND EDX,3 SHR ECX,2 REPE CMPSD JNE @@2 MOV ECX,EDX REPE CMPSB JNE @@2 @@1: INC EAX @@2: POP EDI POP ESI end; /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// // TReadDirChangesThread /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// procedure TReadDirChangesThread.CompareSearchRec(var srOld, srNew : TSpySearchRec); var tt,nt,ot : TSystemTime; //sro,srn : TSpySearchRec; begin FChangeRecord.ChangeType := ctNone; if CompareMem(@srOld,@srNew, SizeOf(TSpySearchRec)) then Exit; if (srOld.Time <> srNew.Time) then begin FChangeRecord.ChangeType := ctLastTime; FChangeRecord.OldTime := FileDateToDateTime(srOld.Time); FChangeRecord.NewTime := FileDateToDateTime(srNew.Time); srOld.Time := srNew.Time; Exit; end else if (srOld.Size <> srNew.Size) then begin FChangeRecord.ChangeType := ctSize; FChangeRecord.OldSize := srOld.Size; FChangeRecord.NewSize := srNew.Size; srOld.Size := srNew.Size; Exit; end else if (srOld.Attr <> srNew.Attr) or (srOld.dwFileAttributes <> srNew.dwFileAttributes) then begin FChangeRecord.ChangeType := ctAttributes; FChangeRecord.OldAttributes := srOld.dwFileAttributes; FChangeRecord.NewAttributes := srNew.dwFileAttributes; srOld.dwFileAttributes := srNew.dwFileAttributes; srOld.Attr := srNew.Attr; Exit; end else begin FileTimeToSystemTime(srNew.ftCreationTime,nt); SystemTimeToTzSpecificLocalTime(nil,nt,tt); nt := tt; FileTimeToSystemTime(srOld.ftCreationTime,ot); SystemTimeToTzSpecificLocalTime(nil,ot,tt); ot := tt; if not SameSystemTime(nt,ot) then begin FChangeRecord.ChangeType := ctCreationTime; FChangeRecord.OldTime := SystemTimeToDateTime(ot); FChangeRecord.NewTime := SystemTimeToDateTime(nt); srOld.ftCreationTime := srNew.ftCreationTime; Exit; end else begin FileTimeToSystemTime(srNew.ftLastAccessTime,nt); SystemTimeToTzSpecificLocalTime(nil,nt,tt); nt := tt; FileTimeToSystemTime(srOld.ftLastAccessTime,ot); SystemTimeToTzSpecificLocalTime(nil,ot,tt); ot := tt; if not SameSystemTime(nt,ot) then begin FChangeRecord.ChangeType := ctLastAccessTime; FChangeRecord.OldTime := SystemTimeToDateTime(ot); FChangeRecord.NewTime := SystemTimeToDateTime(nt); srOld.ftLastAccessTime := srNew.ftLastAccessTime; Exit; end else begin FileTimeToSystemTime(srNew.ftLastWriteTime,nt); SystemTimeToTzSpecificLocalTime(nil,nt,tt); nt := tt; FileTimeToSystemTime(srOld.ftLastWriteTime,ot); SystemTimeToTzSpecificLocalTime(nil,ot,tt); ot := tt; if not SameSystemTime(nt,ot) then begin FChangeRecord.ChangeType := ctLastModificationTime; FChangeRecord.OldTime := SystemTimeToDateTime(ot); FChangeRecord.NewTime := SystemTimeToDateTime(nt); srOld.ftLastWriteTime := srNew.ftLastWriteTime; Exit; end; end; end; end; end; procedure TReadDirChangesThread.Execute; var i, Index : Integer; R : DWord; fd : TFileData; begin while not Terminated do try if (FDirectories.Count = 0) or (not FOwner.Enabled) then Sleep(0) else begin R := WaitForMultipleObjects(FHandles.Count,pHandles,False,200); if (R < (WAIT_OBJECT_0 + DWord(FHandles.Count))) then begin FillChar(FChangeRecord,SizeOf(FChangeRecord),0); FFilesData.SetFound(False); FTempFilesData.Clear; ReadDirectories(FTempFilesData); while (FTempFilesData.Count > 0) do begin fd := TFileData(FTempFilesData.Objects[0]); // New file/directory is created if not FFilesData.Find(fd.Name,Index) then begin Index := FFilesData.AddFileData(fd); TFileData(FFilesData.Objects[Index]).FFound := True; FChangeRecord.ChangeType := ctCreate; FChangeRecord.Name := fd.Name; FChangeRecord.FileFlag := ((fd.FSearchRec.Attr and faDirectory) = 0); FChangeRecord.Directory := FDirectories[R - WAIT_OBJECT_0]; Synchronize(Notify); end else begin // file/directory is modified TFileData(FFilesData.Objects[Index]).FFound := True; CompareSearchRec(TFileData(FFilesData.Objects[Index]).FSearchRec, fd.FSearchRec); while (FChangeRecord.ChangeType <> ctNone) do begin FChangeRecord.Name := fd.Name; FChangeRecord.FileFlag := ((fd.FSearchRec.Attr and faDirectory) = 0); FChangeRecord.Directory := FDirectories[R - WAIT_OBJECT_0]; Synchronize(Notify); CompareSearchRec(TFileData(FFilesData.Objects[Index]).FSearchRec, fd.FSearchRec); end; end; FTempFilesData.Delete(0); end; for i := FFilesData.Count downto 1 do if not TFileData(FFilesData.Objects[i-1]).FFound then begin // file/directory is deleted fd := TFileData(FFilesData.Objects[i-1]); FChangeRecord.ChangeType := ctRemove; FChangeRecord.Name := fd.Name; FChangeRecord.FileFlag := ((fd.FSearchRec.Attr and faDirectory) = 0); FChangeRecord.Directory := FDirectories[R - WAIT_OBJECT_0]; FFilesData.Delete(i-1); Synchronize(Notify); end; FindNextChangeNotification(THandle(FHandles[R - WAIT_OBJECT_0])); end; end; except end; end; procedure TReadDirChangesThread.Notify; var cr : TDirectoryChangeRecord; begin cr := FChangeRecord; if (cr.ChangeType <> ctNone) then FOwner.DoChangeDirectory(cr); end; constructor TReadDirChangesThread.Create(Owner : TOxygenDirectorySpy); begin inherited Create(True); FOwner := Owner; FHandles := TList.Create; pHandles := nil; FDirectories := TStringList.Create; FDirectories.Sorted := True; FDirectories.Duplicates := dupIgnore; FreeOnTerminate := True; FFilesData := TFileDataList.Create; FFilesData.Sorted := True; FFilesData.Duplicates := dupIgnore; FTempFilesData := TFileDataList.Create; FTempFilesData.Sorted := True; FTempFilesData.Duplicates := dupIgnore; //Reset; end; procedure TReadDirChangesThread.ReleaseHandle; var i : Integer; begin if (pHandles <> nil) then FreeMem(pHandles,FHandles.Count * SizeOf(THandle)); pHandles := nil; for i := 1 to FHandles.Count do if (THandle(FHandles[i-1]) <> INVALID_HANDLE_VALUE) then FindCloseChangeNotification(THandle(FHandles[i-1]));//CloseHandle(FHandle); FHandles.Clear; end; destructor TReadDirChangesThread.Destroy; begin ReleaseHandle; FHandles.Free; FDirectories.Free; FFilesData.Clear; FFilesData.Free; FTempFilesData.Clear; FTempFilesData.Free; inherited Destroy; end; procedure TReadDirChangesThread.AllocateHandle; var i : Integer; h : THandle; begin if (FOwner <> nil) then for i := 1 to FDirectories.Count do begin h := FindFirstChangeNotification(PChar(FDirectories[i-1]), FOwner.WatchSubTree, FILE_NOTIFY_CHANGE_FILE_NAME + FILE_NOTIFY_CHANGE_DIR_NAME + FILE_NOTIFY_CHANGE_ATTRIBUTES + FILE_NOTIFY_CHANGE_SIZE + FILE_NOTIFY_CHANGE_LAST_WRITE); {h := FindFirstChangeNotification(PChar(FDirectories[i-1]), FALSE, FILE_NOTIFY_CHANGE_FILE_NAME + FILE_NOTIFY_CHANGE_DIR_NAME + FILE_NOTIFY_CHANGE_ATTRIBUTES + FILE_NOTIFY_CHANGE_SIZE + FILE_NOTIFY_CHANGE_LAST_WRITE);} if (h <> INVALID_HANDLE_VALUE) then FHandles.Add(Pointer(h)) else raise Exception.Create('Error allocating handle: #'+IntToStr(GetLastError)); end; GetMem(pHandles,FHandles.Count * SizeOf(THandle)); for i := 1 to FHandles.Count do pHandles^[i-1] := THandle(FHandles[i-1]); ReadDirectories(FFilesData); end; procedure TReadDirChangesThread.ReadDirectories(DestData : TFileDataList); var i : Integer; procedure AppendDirContents(const Directory : String); var sr : TSearchRec; s : String; begin if (Directory[Length(Directory)] <> '\') then s := Directory + '\*.*' else s := Directory + '*.*'; if (FindFirst(s,faAnyFile,sr) = 0) then begin if (sr.Name <> '.') and (sr.Name <> '..') then begin DestData.AddSearchRec(Directory,sr); if ((sr.Attr and faDirectory) <> 0) and FOwner.WatchSubTree then AppendDirContents(Directory + '\' + sr.Name); end; while (FindNext(sr) = 0) do if (sr.Name <> '.') and (sr.Name <> '..') then begin DestData.AddSearchRec(Directory,sr); if ((sr.Attr and faDirectory) <> 0) and FOwner.WatchSubTree then AppendDirContents(Directory + '\' + sr.Name); end; FindClose(sr); end; end; begin for i := 1 to FDirectories.Count do AppendDirContents(FDirectories[i-1]); end; procedure TReadDirChangesThread.Reset; begin ReleaseHandle; if (FDirectories.Count = 0) then Exit; AllocateHandle; if (FHandles.Count > 0) then Resume; end; ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// // TOxygenDirectorySpy ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// constructor TOxygenDirectorySpy.Create(AOwner : TComponent); begin inherited Create(AOwner); FEnabled := False; FWatchSubTree := False; FDirectories := TStringList.Create; TStringList(FDirectories).Sorted := True; TStringList(FDirectories).Duplicates := dupIgnore; FOnChangeDirectory := nil; FThread := nil; {$IFDEF O2_SW} if (MessageDlg('This version of TOxygenDirectorySpy is NOT REGISTERED. '+#13#10+ 'Press Ok to visit http://www.oxygensoftware.com and register.', mtWarning,[mbOk,mbCancel],0) = mrOk) then ShellExecute(0,'open','http://www.oxygensoftware.com',nil,nil,SW_SHOWNORMAL); {$ENDIF} end; procedure TOxygenDirectorySpy.SetEnabled(const Value : Boolean); begin if (csDesigning in ComponentState) then Exit; if (Value = FEnabled) then Exit; CheckDirectories; if (FDirectories.Count = 0) then FEnabled := False else FEnabled := Value; if (Win32Platform = VER_PLATFORM_WIN32_WINDOWS) then FWatchSubTree := False; if FEnabled then begin FThread := TReadDirChangesThread.Create(Self); FThread.FDirectories.Clear; FThread.FDirectories.AddStrings(FDirectories); FThread.Reset; end else if (FThread <> nil) then begin FThread.Terminate; FThread.WaitFor; //TerminateThread(FThread.Handle,0); FThread := nil; end; end; procedure TOxygenDirectorySpy.CheckDirectories; var i : Integer; s : String; begin for i := FDirectories.Count downto 1 do begin s := Trim(FDirectories[i-1]); if (s = '') or (not DirectoryExists(s)) then FDirectories.Delete(i-1); end; while (FDirectories.Count > MAXIMUM_WAIT_OBJECTS) do FDirectories.Delete(FDirectories.Count - 1); end; procedure TOxygenDirectorySpy.SetDirectories(const Value : TStrings); begin FDirectories.Clear; FDirectories.AddStrings(Value); CheckDirectories; if FEnabled then begin SetEnabled(False); SetEnabled(True); end; end; procedure TOxygenDirectorySpy.SetWatchSubTree(const Value : Boolean); begin if (Win32Platform = VER_PLATFORM_WIN32_WINDOWS) then begin FWatchSubTree := False; Exit; end; if (FWatchSubTree = Value) then Exit; FWatchSubTree := Value; if FEnabled then begin SetEnabled(False); SetEnabled(True); end; end; procedure TOxygenDirectorySpy.DoChangeDirectory(ChangeRecord : TDirectoryChangeRecord); begin if Assigned(FOnChangeDirectory) then FOnChangeDirectory(Self, ChangeRecord); end; destructor TOxygenDirectorySpy.Destroy; begin if (FThread <> nil) then begin FThread.Terminate; FThread.WaitFor; //TerminateThread(FThread.Handle,0); //FThread.Free; FThread := nil; end; inherited Destroy; end; procedure Register; begin RegisterComponents('Oxygen', [TOxygenDirectorySpy]); end; end. 調用單元 [delphi] unit utMain; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, ExtCtrls, O2DirSpy, FileCtrl; type TMainForm = class(TForm) lstChanges: TListBox; pnl1: TPanel; pnl2: TPanel; pnl3: TPanel; btnAdd: TButton; btnRemove: TButton; pnl4: TPanel; lstDirectoriesListBox: TListBox; pnl5: TPanel; lbl1: TLabel; chkWatchSubTree: TCheckBox; procedure btnAddClick(Sender: TObject); procedure btnRemoveClick(Sender: TObject); procedure FormCreate(Sender: TObject); procedure chkWatchSubTreeClick(Sender: TObject); procedure FormDestroy(Sender: TObject); private OxygenDirectorySpy1: TOxygenDirectorySpy; procedure OxygenDirectorySpy1ChangeDirectory(Sender: TObject; ChangeRecord: TDirectoryChangeRecord); { Private declarations } public { Public declarations } end; var MainForm: TMainForm; implementation {$R *.dfm} procedure TMainForm.btnAddClick(Sender: TObject); var s : String; begin if not SelectDirectory(s, [sdAllowCreate, sdPerformCreate, sdPrompt],0) then Exit; with OxygenDirectorySpy1 do begin Enabled := False; Directories.Add(s); Enabled := True; end; with lstDirectoriesListBox do try Items.Clear; Items.AddStrings(OxygenDirectorySpy1.Directories); ItemIndex := 0; except end; btnRemove.Enabled := True; end; procedure TMainForm.btnRemoveClick(Sender: TObject); var i : Integer; begin if (lstDirectoriesListBox.Items.Count = 0) then Exit; i := lstDirectoriesListBox.ItemIndex; if (i = -1) then Exit; lstDirectoriesListBox.Items.Delete(i); with OxygenDirectorySpy1 do begin Enabled := False; Directories.Delete(i); if (Directories.Count > 0) then begin Enabled := True; lstDirectoriesListBox.ItemIndex := 0; end; end; btnRemove.Enabled := (lstDirectoriesListBox.Items.Count > 0); end; procedure TMainForm.chkWatchSubTreeClick(Sender: TObject); begin OxygenDirectorySpy1.WatchSubTree := chkWatchSubTree.Checked; end; procedure TMainForm.FormCreate(Sender: TObject); begin OxygenDirectorySpy1 := TOxygenDirectorySpy.Create(Self); OxygenDirectorySpy1.OnChangeDirectory := OxygenDirectorySpy1ChangeDirectory; SendMessage(lstChanges.Handle,LB_SETHORIZONTALEXTENT,1000,0); end; procedure TMainForm.FormDestroy(Sender: TObject); begin OxygenDirectorySpy1.Free; end; procedure TMainForm.OxygenDirectorySpy1ChangeDirectory(Sender: TObject; ChangeRecord: TDirectoryChangeRecord); begin lstChanges.Items.Add(DateTimeToStr(SysUtils.Now) + ' ' + ChangeRecord2String(ChangeRecord)); with lstChanges do if (Items.Count > 0) then ItemIndex := Items.Count - 1; end; end. 調用窗體 [delphi] object MainForm: TMainForm Left = 0 Top = 0 Caption = 'MainForm' ClientHeight = 388 ClientWidth = 485 Color = clBtnFace Font.Charset = DEFAULT_CHARSET Font.Color = clWindowText Font.Height = -12 Font.Name = 'Tahoma' Font.Style = [] OldCreateOrder = False OnCreate = FormCreate OnDestroy = FormDestroy PixelsPerInch = 106 TextHeight = 14 object lstChanges: TListBox Left = 0 Top = 105 Width = 485 Height = 283 Align = alClient ItemHeight = 14 TabOrder = 0 end object pnl1: TPanel Left = 0 Top = 0 Width = 485 Height = 105 Align = alTop TabOrder = 1 object pnl2: TPanel Left = 405 Top = 1 Width = 79 Height = 103 Align = alRight BevelOuter = bvNone TabOrder = 0 object pnl3: TPanel Left = 4 Top = 0 Width = 75 Height = 103 Align = alRight BevelOuter = bvNone TabOrder = 0 object btnAdd: TButton Left = 4 Top = 24 Width = 69 Height = 21 Caption = 'Add' TabOrder = 0 OnClick = btnAddClick end object btnRemove: TButton Left = 4 Top = 52 Width = 69 Height = 21 Caption = 'Remove' Enabled = False TabOrder = 1 OnClick = btnRemoveClick end end end object pnl4: TPanel Left = 1 Top = 1 Width = 404 Height = 103 Align = alClient BevelOuter = bvNone TabOrder = 1 object lstDirectoriesListBox: TListBox Left = 0 Top = 29 Width = 404 Height = 74 Align = alClient ItemHeight = 14 TabOrder = 0 end object pnl5: TPanel Left = 0 Top = 0 Width = 404 Height = 29 Align = alTop BevelOuter = bvNone TabOrder = 1 object lbl1: TLabel Left = 5 Top = 8 Width = 115 Height = 14 Caption = 'Directories to watch:' end object chkWatchSubTree: TCheckBox Left = 220 Top = 4 Width = 125 Height = 17 www.2cto.com Caption = 'Watch subdirectories' Checked = True State = cbChecked TabOrder = 0 OnClick = chkWatchSubTreeClick end end end end end
