该功能在delphi XE + XP 下测试通过
O2DirSpy.pas (该单元获取自网络)
[delphi]
{====================================================================}
{ TOxygenDirectorySpy Component, v1.6 c 2000-2001 Oxygen Software }
{--------------------------------------------------------------------}
{ Written by Oleg Fyodorov, delphi@oxygensoftware.com }
{ http://www.oxygensoftware.com }
{====================================================================}
unit O2DirSpy;
inte易做图ce
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);
补充：软件开发 , Delphi ,
