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authortobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c>2008-06-08 15:33:48 +0000
committertobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c>2008-06-08 15:33:48 +0000
commit46bb010ca7c5eb04551c030105f9999ca80e472f (patch)
tree3cb6a6bdd7e4e62623c6a83b5d22c1c0dfad73e8 /Game/Code/lib/other
parentf4425b4558b7fd86de874035f81ea290c987e96d (diff)
downloadusdx-46bb010ca7c5eb04551c030105f9999ca80e472f.tar.gz
usdx-46bb010ca7c5eb04551c030105f9999ca80e472f.tar.xz
usdx-46bb010ca7c5eb04551c030105f9999ca80e472f.zip
- set svn:eol-style to native
- removed some svn:executable properties from non-executable files git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/trunk@1144 b956fd51-792f-4845-bead-9b4dfca2ff2c
Diffstat (limited to '')
-rw-r--r--Game/Code/lib/other/DirWatch.pas684
1 files changed, 342 insertions, 342 deletions
diff --git a/Game/Code/lib/other/DirWatch.pas b/Game/Code/lib/other/DirWatch.pas
index adeb34ed..d302cade 100644
--- a/Game/Code/lib/other/DirWatch.pas
+++ b/Game/Code/lib/other/DirWatch.pas
@@ -1,343 +1,343 @@
-unit DirWatch;
-
-// -----------------------------------------------------------------------------
-// Component Name: TDirectoryWatch .
-// Module: DirWatch .
-// Description: Implements watching for file changes in a designated .
-// directory (or directories). .
-// Version: 1.4 .
-// Date: 10-MAR-2003 .
-// Target: Win32, Delphi 3 - Delphi 7 .
-// Author: Angus Johnson, angusj-AT-myrealbox-DOT-com .
-// A portion of code has been copied from the Drag & Drop .
-// Component Suite which I co-authored with Anders Melander. .
-// Copyright: © 2003 Angus Johnson .
-// .
-// Usage: 1. Add a TDirectoryWatch component to your form. .
-// 2. Set its Directory property .
-// 3. If you wish to watch its subdirectories too then set .
-// the WatchSubDir property to true .
-// 4. Assign the OnChange event .
-// 5. Set Active to true .
-// -----------------------------------------------------------------------------
-
-interface
-
-{$IFDEF FPC}
- {$MODE Delphi}
- {$H+} // use AnsiString
-{$ENDIF}
-
-uses
- Windows,
- Messages,
- SysUtils,
- UCommon,
- Classes;
-
-type
- TNotifyFilters = set of (nfFilename, nfDirname, nfAttrib,
- nfSize, nfLastWrite, nfSecurity);
-
- TWatchThread = class; //forward declaration
-
- TDirectoryWatch = class(TComponent)
- private
- fWindowHandle: THandle;
- fWatchThread: TWatchThread;
- fWatchSubDirs: boolean;
- fDirectory: string;
- fActive: boolean;
- fNotifyFilters: TNotifyFilters; //see FindFirstChangeNotification in winAPI
- fOnChangeEvent: TNotifyEvent;
- procedure SetActive(aActive: boolean);
- procedure SetDirectory(aDir: string);
- procedure SetWatchSubDirs(aWatchSubDirs: boolean);
- procedure SetNotifyFilters(aNotifyFilters: TNotifyFilters);
- procedure WndProc(var aMsg: TMessage);
- public
- constructor Create(aOwner: TComponent); override;
- destructor Destroy; override;
- published
- property Directory: string read fDirectory write SetDirectory;
- property NotifyFilters: TNotifyFilters
- read fNotifyFilters write SetNotifyFilters;
- property WatchSubDirs: boolean read fWatchSubDirs write SetWatchSubDirs;
- property Active: boolean read fActive write SetActive;
- property OnChange: TNotifyEvent read fOnChangeEvent write fOnChangeEvent;
- end;
-
- TWatchThread = class(TThread)
- private
- fOwnerHdl: Thandle;
- fChangeNotify : THandle; //Signals whenever Windows detects a change in .
- //the watched directory .
- fBreakEvent: THandle; //Signals when either the Directory property .
- //changes or when the thread terminates .
- fDirectory: string;
- fWatchSubDirs: longbool;
- fNotifyFilters: dword;
- fFinished: boolean;
- protected
- procedure SetDirectory(const Value: string);
- procedure ProcessFilenameChanges;
- procedure Execute; override;
- public
- constructor Create( OwnerHdl: THandle;
- const InitialDir: string; WatchSubDirs: boolean; NotifyFilters: dword);
- destructor Destroy; override;
- procedure Terminate;
- property Directory: string write SetDirectory;
- end;
-
-procedure Register;
-
-implementation
-
-const
- NOTIFYCHANGE_MESSAGE = WM_USER + 1;
-
-resourcestring
- sInvalidDir = 'Invalid Directory: ';
-
-//----------------------------------------------------------------------------
-// Miscellaneous functions ...
-//----------------------------------------------------------------------------
-
-procedure Register;
-begin
- RegisterComponents('Samples', [TDirectoryWatch]);
-end;
-//----------------------------------------------------------------------------
-
-function DirectoryExists(const Name: string): Boolean;
-var
- Code: Integer;
-begin
- Code := GetFileAttributes(PChar(Name));
- Result := (Code <> -1) and (FILE_ATTRIBUTE_DIRECTORY and Code <> 0);
-end;
-
-//----------------------------------------------------------------------------
-// TDirectoryWatch methods ...
-//----------------------------------------------------------------------------
-
-constructor TDirectoryWatch.Create(aOwner: TComponent);
-begin
- inherited Create(aOwner);
- //default Notify values - notify if either a file name or a directory name
- //changes or if a file is modified ...
- fNotifyFilters := [nfFilename, nfDirname, nfLastWrite];
- fDirectory := 'C:\';
- //this non-visual control needs to handle messages, so ...
- if not (csDesigning in ComponentState) then
- fWindowHandle := AllocateHWnd(WndProc);
-end;
-//----------------------------------------------------------------------------
-
-destructor TDirectoryWatch.Destroy;
-begin
- Active := false;
- if not (csDesigning in ComponentState) then
- DeallocateHWnd(fWindowHandle);
- inherited Destroy;
-end;
-//----------------------------------------------------------------------------
-
-procedure TDirectoryWatch.WndProc(var aMsg: TMessage);
-begin
- with aMsg do
- if Msg = NOTIFYCHANGE_MESSAGE then
- begin
- if assigned(OnChange) then OnChange(self);
- end else
- Result := DefWindowProc(FWindowHandle, Msg, wParam, lParam);
-end;
-//------------------------------------------------------------------------------
-
-procedure TDirectoryWatch.SetNotifyFilters(aNotifyFilters: TNotifyFilters);
-begin
- if aNotifyFilters = fNotifyFilters then exit;
- fNotifyFilters := aNotifyFilters;
- if assigned(fWatchThread) then
- begin
- Active := false;
- Active := true;
- end;
-end;
-//------------------------------------------------------------------------------
-
-procedure TDirectoryWatch.SetWatchSubDirs(aWatchSubDirs: boolean);
-begin
- if aWatchSubDirs = fWatchSubDirs then exit;
- fWatchSubDirs := aWatchSubDirs;
- if assigned(fWatchThread) then
- begin
- Active := false;
- Active := true;
- end;
-end;
-//------------------------------------------------------------------------------
-
-procedure TDirectoryWatch.SetDirectory(aDir: string);
-begin
- if aDir = '' then
- begin
- Active := false;
- fDirectory := '';
- exit;
- end;
- if (aDir[length(aDir)] <> '\') then aDir := aDir + '\';
- if aDir = fDirectory then exit;
- if not (csDesigning in ComponentState) and not DirectoryExists(aDir) then
- raise Exception.Create( sInvalidDir + aDir);
- fDirectory := aDir;
- if assigned(fWatchThread) then
- fWatchThread.Directory := fDirectory;
-end;
-//------------------------------------------------------------------------------
-
-procedure TDirectoryWatch.SetActive(aActive: boolean);
-var
- nf: dword;
-begin
- if aActive = fActive then exit;
- fActive := aActive;
- if csDesigning in ComponentState then exit;
- if fActive then
- begin
- if not DirectoryExists(fDirectory) then
- begin
- fActive := false;
- raise Exception.Create(sInvalidDir + fDirectory);
- end;
- nf := 0;
- if nfFilename in fNotifyFilters then
- nf := nf or FILE_NOTIFY_CHANGE_FILE_NAME;
- if nfDirname in fNotifyFilters then
- nf := nf or FILE_NOTIFY_CHANGE_DIR_NAME;
- if nfAttrib in fNotifyFilters then
- nf := nf or FILE_NOTIFY_CHANGE_ATTRIBUTES;
- if nfSize in fNotifyFilters then
- nf := nf or FILE_NOTIFY_CHANGE_SIZE;
- if nfLastWrite in fNotifyFilters then
- nf := nf or FILE_NOTIFY_CHANGE_LAST_WRITE;
- if nfSecurity in fNotifyFilters then
- nf := nf or FILE_NOTIFY_CHANGE_SECURITY;
- fWatchThread := TWatchThread.Create(
- fWindowHandle, fDirectory, fWatchSubDirs, nf);
- end else
- begin
- fWatchThread.Terminate;
- fWatchThread := nil;
- end;
-end;
-
-//----------------------------------------------------------------------------
-// TWatchThread methods ...
-//----------------------------------------------------------------------------
-
-constructor TWatchThread.Create(OwnerHdl: THandle;
- const InitialDir: string; WatchSubDirs: boolean; NotifyFilters: dword);
-begin
- inherited Create(True);
- fOwnerHdl := OwnerHdl;
- if WatchSubDirs then
- cardinal(fWatchSubDirs) := 1 //workaround a Win9x OS issue
- else
- fWatchSubDirs := false;
- FreeOnTerminate := true;
- Priority := tpLowest;
- fDirectory := InitialDir;
- fNotifyFilters := NotifyFilters;
- fBreakEvent := windows.CreateEvent(nil, False, False, nil);
- Resume;
-end;
-//------------------------------------------------------------------------------
-
-destructor TWatchThread.Destroy;
-begin
- CloseHandle(fBreakEvent);
- inherited Destroy;
-end;
-//------------------------------------------------------------------------------
-
-procedure TWatchThread.SetDirectory(const Value: string);
-begin
- if (Value = FDirectory) then exit;
- FDirectory := Value;
- SetEvent(fBreakEvent);
-end;
-//------------------------------------------------------------------------------
-
-procedure TWatchThread.Terminate;
-begin
- inherited Terminate;
- SetEvent(fBreakEvent);
- while not fFinished do sleep(10); //avoids a reported resource leak
- //if called while closing the application.
-end;
-//------------------------------------------------------------------------------
-
-procedure TWatchThread.Execute;
-begin
- //OUTER LOOP - manages Directory property reassignments
- while (not Terminated) do
- begin
- fChangeNotify := FindFirstChangeNotification(pchar(fDirectory),
- fWatchSubDirs, fNotifyFilters);
- if (fChangeNotify = INVALID_HANDLE_VALUE) then
- //Can't monitor the specified directory so we'll just wait for
- //a new Directory assignment or the thread terminating ...
- WaitForSingleObject(fBreakEvent, INFINITE)
- else
- try
- //Now do the INNER loop...
- ProcessFilenameChanges;
- finally
- FindCloseChangeNotification(fChangeNotify);
- end;
- end;
- fFinished := true;
-end;
-//------------------------------------------------------------------------------
-
-procedure TWatchThread.ProcessFilenameChanges;
-var
- WaitResult : DWORD;
- HandleArray : array[0..1] of THandle;
-const
- TEN_MSECS = 10;
- HUNDRED_MSECS = 100;
-begin
- HandleArray[0] := fBreakEvent;
- HandleArray[1] := fChangeNotify;
- //INNER LOOP - exits only when fBreakEvent signaled
- while (not Terminated) do
- begin
- //waits for either fChangeNotify or fBreakEvent ...
- WaitResult := WaitForMultipleObjects(2, @HandleArray, False, INFINITE);
- if (WaitResult = WAIT_OBJECT_0 + 1) then //fChangeNotify
- begin
- repeat //ie: if a number of files are changing in a block
- //just post the one notification message ...
- FindNextChangeNotification(fChangeNotify);
- until Terminated or
- (WaitForSingleObject(fChangeNotify, TEN_MSECS) <> WAIT_OBJECT_0);
- if Terminated then break;
- //OK, now notify the main thread (before restarting inner loop)...
- PostMessage(fOwnerHdl, NOTIFYCHANGE_MESSAGE, 0, 0);
- end else //fBreakEvent ...
- begin
- //If the Directory property is undergoing multiple rapid reassignments
- //wait 'til this stops before restarting monitoring of a new directory ...
- while (not Terminated) and
- (WaitForSingleObject(fBreakEvent, HUNDRED_MSECS) = WAIT_OBJECT_0) do;
- break; //EXIT LOOP HERE
- end;
- end;
-end;
-//------------------------------------------------------------------------------
-//------------------------------------------------------------------------------
-
+unit DirWatch;
+
+// -----------------------------------------------------------------------------
+// Component Name: TDirectoryWatch .
+// Module: DirWatch .
+// Description: Implements watching for file changes in a designated .
+// directory (or directories). .
+// Version: 1.4 .
+// Date: 10-MAR-2003 .
+// Target: Win32, Delphi 3 - Delphi 7 .
+// Author: Angus Johnson, angusj-AT-myrealbox-DOT-com .
+// A portion of code has been copied from the Drag & Drop .
+// Component Suite which I co-authored with Anders Melander. .
+// Copyright: © 2003 Angus Johnson .
+// .
+// Usage: 1. Add a TDirectoryWatch component to your form. .
+// 2. Set its Directory property .
+// 3. If you wish to watch its subdirectories too then set .
+// the WatchSubDir property to true .
+// 4. Assign the OnChange event .
+// 5. Set Active to true .
+// -----------------------------------------------------------------------------
+
+interface
+
+{$IFDEF FPC}
+ {$MODE Delphi}
+ {$H+} // use AnsiString
+{$ENDIF}
+
+uses
+ Windows,
+ Messages,
+ SysUtils,
+ UCommon,
+ Classes;
+
+type
+ TNotifyFilters = set of (nfFilename, nfDirname, nfAttrib,
+ nfSize, nfLastWrite, nfSecurity);
+
+ TWatchThread = class; //forward declaration
+
+ TDirectoryWatch = class(TComponent)
+ private
+ fWindowHandle: THandle;
+ fWatchThread: TWatchThread;
+ fWatchSubDirs: boolean;
+ fDirectory: string;
+ fActive: boolean;
+ fNotifyFilters: TNotifyFilters; //see FindFirstChangeNotification in winAPI
+ fOnChangeEvent: TNotifyEvent;
+ procedure SetActive(aActive: boolean);
+ procedure SetDirectory(aDir: string);
+ procedure SetWatchSubDirs(aWatchSubDirs: boolean);
+ procedure SetNotifyFilters(aNotifyFilters: TNotifyFilters);
+ procedure WndProc(var aMsg: TMessage);
+ public
+ constructor Create(aOwner: TComponent); override;
+ destructor Destroy; override;
+ published
+ property Directory: string read fDirectory write SetDirectory;
+ property NotifyFilters: TNotifyFilters
+ read fNotifyFilters write SetNotifyFilters;
+ property WatchSubDirs: boolean read fWatchSubDirs write SetWatchSubDirs;
+ property Active: boolean read fActive write SetActive;
+ property OnChange: TNotifyEvent read fOnChangeEvent write fOnChangeEvent;
+ end;
+
+ TWatchThread = class(TThread)
+ private
+ fOwnerHdl: Thandle;
+ fChangeNotify : THandle; //Signals whenever Windows detects a change in .
+ //the watched directory .
+ fBreakEvent: THandle; //Signals when either the Directory property .
+ //changes or when the thread terminates .
+ fDirectory: string;
+ fWatchSubDirs: longbool;
+ fNotifyFilters: dword;
+ fFinished: boolean;
+ protected
+ procedure SetDirectory(const Value: string);
+ procedure ProcessFilenameChanges;
+ procedure Execute; override;
+ public
+ constructor Create( OwnerHdl: THandle;
+ const InitialDir: string; WatchSubDirs: boolean; NotifyFilters: dword);
+ destructor Destroy; override;
+ procedure Terminate;
+ property Directory: string write SetDirectory;
+ end;
+
+procedure Register;
+
+implementation
+
+const
+ NOTIFYCHANGE_MESSAGE = WM_USER + 1;
+
+resourcestring
+ sInvalidDir = 'Invalid Directory: ';
+
+//----------------------------------------------------------------------------
+// Miscellaneous functions ...
+//----------------------------------------------------------------------------
+
+procedure Register;
+begin
+ RegisterComponents('Samples', [TDirectoryWatch]);
+end;
+//----------------------------------------------------------------------------
+
+function DirectoryExists(const Name: string): Boolean;
+var
+ Code: Integer;
+begin
+ Code := GetFileAttributes(PChar(Name));
+ Result := (Code <> -1) and (FILE_ATTRIBUTE_DIRECTORY and Code <> 0);
+end;
+
+//----------------------------------------------------------------------------
+// TDirectoryWatch methods ...
+//----------------------------------------------------------------------------
+
+constructor TDirectoryWatch.Create(aOwner: TComponent);
+begin
+ inherited Create(aOwner);
+ //default Notify values - notify if either a file name or a directory name
+ //changes or if a file is modified ...
+ fNotifyFilters := [nfFilename, nfDirname, nfLastWrite];
+ fDirectory := 'C:\';
+ //this non-visual control needs to handle messages, so ...
+ if not (csDesigning in ComponentState) then
+ fWindowHandle := AllocateHWnd(WndProc);
+end;
+//----------------------------------------------------------------------------
+
+destructor TDirectoryWatch.Destroy;
+begin
+ Active := false;
+ if not (csDesigning in ComponentState) then
+ DeallocateHWnd(fWindowHandle);
+ inherited Destroy;
+end;
+//----------------------------------------------------------------------------
+
+procedure TDirectoryWatch.WndProc(var aMsg: TMessage);
+begin
+ with aMsg do
+ if Msg = NOTIFYCHANGE_MESSAGE then
+ begin
+ if assigned(OnChange) then OnChange(self);
+ end else
+ Result := DefWindowProc(FWindowHandle, Msg, wParam, lParam);
+end;
+//------------------------------------------------------------------------------
+
+procedure TDirectoryWatch.SetNotifyFilters(aNotifyFilters: TNotifyFilters);
+begin
+ if aNotifyFilters = fNotifyFilters then exit;
+ fNotifyFilters := aNotifyFilters;
+ if assigned(fWatchThread) then
+ begin
+ Active := false;
+ Active := true;
+ end;
+end;
+//------------------------------------------------------------------------------
+
+procedure TDirectoryWatch.SetWatchSubDirs(aWatchSubDirs: boolean);
+begin
+ if aWatchSubDirs = fWatchSubDirs then exit;
+ fWatchSubDirs := aWatchSubDirs;
+ if assigned(fWatchThread) then
+ begin
+ Active := false;
+ Active := true;
+ end;
+end;
+//------------------------------------------------------------------------------
+
+procedure TDirectoryWatch.SetDirectory(aDir: string);
+begin
+ if aDir = '' then
+ begin
+ Active := false;
+ fDirectory := '';
+ exit;
+ end;
+ if (aDir[length(aDir)] <> '\') then aDir := aDir + '\';
+ if aDir = fDirectory then exit;
+ if not (csDesigning in ComponentState) and not DirectoryExists(aDir) then
+ raise Exception.Create( sInvalidDir + aDir);
+ fDirectory := aDir;
+ if assigned(fWatchThread) then
+ fWatchThread.Directory := fDirectory;
+end;
+//------------------------------------------------------------------------------
+
+procedure TDirectoryWatch.SetActive(aActive: boolean);
+var
+ nf: dword;
+begin
+ if aActive = fActive then exit;
+ fActive := aActive;
+ if csDesigning in ComponentState then exit;
+ if fActive then
+ begin
+ if not DirectoryExists(fDirectory) then
+ begin
+ fActive := false;
+ raise Exception.Create(sInvalidDir + fDirectory);
+ end;
+ nf := 0;
+ if nfFilename in fNotifyFilters then
+ nf := nf or FILE_NOTIFY_CHANGE_FILE_NAME;
+ if nfDirname in fNotifyFilters then
+ nf := nf or FILE_NOTIFY_CHANGE_DIR_NAME;
+ if nfAttrib in fNotifyFilters then
+ nf := nf or FILE_NOTIFY_CHANGE_ATTRIBUTES;
+ if nfSize in fNotifyFilters then
+ nf := nf or FILE_NOTIFY_CHANGE_SIZE;
+ if nfLastWrite in fNotifyFilters then
+ nf := nf or FILE_NOTIFY_CHANGE_LAST_WRITE;
+ if nfSecurity in fNotifyFilters then
+ nf := nf or FILE_NOTIFY_CHANGE_SECURITY;
+ fWatchThread := TWatchThread.Create(
+ fWindowHandle, fDirectory, fWatchSubDirs, nf);
+ end else
+ begin
+ fWatchThread.Terminate;
+ fWatchThread := nil;
+ end;
+end;
+
+//----------------------------------------------------------------------------
+// TWatchThread methods ...
+//----------------------------------------------------------------------------
+
+constructor TWatchThread.Create(OwnerHdl: THandle;
+ const InitialDir: string; WatchSubDirs: boolean; NotifyFilters: dword);
+begin
+ inherited Create(True);
+ fOwnerHdl := OwnerHdl;
+ if WatchSubDirs then
+ cardinal(fWatchSubDirs) := 1 //workaround a Win9x OS issue
+ else
+ fWatchSubDirs := false;
+ FreeOnTerminate := true;
+ Priority := tpLowest;
+ fDirectory := InitialDir;
+ fNotifyFilters := NotifyFilters;
+ fBreakEvent := windows.CreateEvent(nil, False, False, nil);
+ Resume;
+end;
+//------------------------------------------------------------------------------
+
+destructor TWatchThread.Destroy;
+begin
+ CloseHandle(fBreakEvent);
+ inherited Destroy;
+end;
+//------------------------------------------------------------------------------
+
+procedure TWatchThread.SetDirectory(const Value: string);
+begin
+ if (Value = FDirectory) then exit;
+ FDirectory := Value;
+ SetEvent(fBreakEvent);
+end;
+//------------------------------------------------------------------------------
+
+procedure TWatchThread.Terminate;
+begin
+ inherited Terminate;
+ SetEvent(fBreakEvent);
+ while not fFinished do sleep(10); //avoids a reported resource leak
+ //if called while closing the application.
+end;
+//------------------------------------------------------------------------------
+
+procedure TWatchThread.Execute;
+begin
+ //OUTER LOOP - manages Directory property reassignments
+ while (not Terminated) do
+ begin
+ fChangeNotify := FindFirstChangeNotification(pchar(fDirectory),
+ fWatchSubDirs, fNotifyFilters);
+ if (fChangeNotify = INVALID_HANDLE_VALUE) then
+ //Can't monitor the specified directory so we'll just wait for
+ //a new Directory assignment or the thread terminating ...
+ WaitForSingleObject(fBreakEvent, INFINITE)
+ else
+ try
+ //Now do the INNER loop...
+ ProcessFilenameChanges;
+ finally
+ FindCloseChangeNotification(fChangeNotify);
+ end;
+ end;
+ fFinished := true;
+end;
+//------------------------------------------------------------------------------
+
+procedure TWatchThread.ProcessFilenameChanges;
+var
+ WaitResult : DWORD;
+ HandleArray : array[0..1] of THandle;
+const
+ TEN_MSECS = 10;
+ HUNDRED_MSECS = 100;
+begin
+ HandleArray[0] := fBreakEvent;
+ HandleArray[1] := fChangeNotify;
+ //INNER LOOP - exits only when fBreakEvent signaled
+ while (not Terminated) do
+ begin
+ //waits for either fChangeNotify or fBreakEvent ...
+ WaitResult := WaitForMultipleObjects(2, @HandleArray, False, INFINITE);
+ if (WaitResult = WAIT_OBJECT_0 + 1) then //fChangeNotify
+ begin
+ repeat //ie: if a number of files are changing in a block
+ //just post the one notification message ...
+ FindNextChangeNotification(fChangeNotify);
+ until Terminated or
+ (WaitForSingleObject(fChangeNotify, TEN_MSECS) <> WAIT_OBJECT_0);
+ if Terminated then break;
+ //OK, now notify the main thread (before restarting inner loop)...
+ PostMessage(fOwnerHdl, NOTIFYCHANGE_MESSAGE, 0, 0);
+ end else //fBreakEvent ...
+ begin
+ //If the Directory property is undergoing multiple rapid reassignments
+ //wait 'til this stops before restarting monitoring of a new directory ...
+ while (not Terminated) and
+ (WaitForSingleObject(fBreakEvent, HUNDRED_MSECS) = WAIT_OBJECT_0) do;
+ break; //EXIT LOOP HERE
+ end;
+ end;
+end;
+//------------------------------------------------------------------------------
+//------------------------------------------------------------------------------
+
end. \ No newline at end of file