Make maximum history files configurable, issue #886.

locale/de/Notepad4.rc

@@ -1253,6 +1253,8 @@ FONT 8, "MS Shell Dlg", 400, 0, 0x1
 BEGIN
     CONTROL         "",IDC_FILEMRU,"SysListView32",LVS_REPORT | LVS_SINGLESEL | LVS_SHOWSELALWAYS | LVS_SHAREIMAGELISTS | LVS_AUTOARRANGE | LVS_NOCOLUMNHEADER | WS_BORDER | WS_TABSTOP,7,7,212,158
     AUTOCHECKBOX    "&Verlauf beim Beenden speichern",IDC_SAVEMRU,7,169,155,10,WS_TABSTOP
+    LTEXT           "Maximum files:",IDC_MRU_COUNT_LABEL,7,185,64,8
+    EDITTEXT        IDC_MRU_COUNT_VALUE,73,183,30,13,ES_NUMBER | ES_AUTOHSCROLL
     CONTROL         "<a>Verlauf löschen</a>",IDC_EMPTY_MRU,"SysLink",WS_TABSTOP,172,169,48,10
     DEFPUSHBUTTON   "OK",IDOK,113,183,50,14,WS_DISABLED
     PUSHBUTTON      "Abbrechen",IDCANCEL,169,183,50,14

locale/fr/Notepad4.rc

@@ -1253,6 +1253,8 @@ FONT 8, "MS Shell Dlg", 400, 0, 0x1
 BEGIN
     CONTROL         "",IDC_FILEMRU,"SysListView32",LVS_REPORT | LVS_SINGLESEL | LVS_SHOWSELALWAYS | LVS_SHAREIMAGELISTS | LVS_AUTOARRANGE | LVS_NOCOLUMNHEADER | WS_BORDER | WS_TABSTOP,7,7,212,158
     AUTOCHECKBOX    "Mémoriser les fichiers récemment ouvert à la fermeture.",IDC_SAVEMRU,7,169,155,10,WS_TABSTOP
+    LTEXT           "Maximum files:",IDC_MRU_COUNT_LABEL,7,185,64,8
+    EDITTEXT        IDC_MRU_COUNT_VALUE,73,183,30,13,ES_NUMBER | ES_AUTOHSCROLL
     CONTROL         "<a>Effacer l'historique</a>",IDC_EMPTY_MRU,"SysLink",WS_TABSTOP,172,169,48,10
     DEFPUSHBUTTON   "OK",IDOK,113,183,50,14,WS_DISABLED
     PUSHBUTTON      "Annuler",IDCANCEL,169,183,50,14

locale/it/Notepad4.rc

@@ -1253,6 +1253,8 @@ FONT 8, "MS Shell Dlg", 400, 0, 0x1
 BEGIN
     CONTROL         "",IDC_FILEMRU,"SysListView32",LVS_REPORT | LVS_SINGLESEL | LVS_SHOWSELALWAYS | LVS_SHAREIMAGELISTS | LVS_AUTOARRANGE | LVS_NOCOLUMNHEADER | WS_BORDER | WS_TABSTOP,7,7,212,158
     AUTOCHECKBOX    "&Ricorda file recenti all'uscita.",IDC_SAVEMRU,7,169,155,10,WS_TABSTOP
+    LTEXT           "Maximum files:",IDC_MRU_COUNT_LABEL,7,185,64,8
+    EDITTEXT        IDC_MRU_COUNT_VALUE,73,183,30,13,ES_NUMBER | ES_AUTOHSCROLL
     CONTROL         "<a>Elimina Cronologia</a>",IDC_EMPTY_MRU,"SysLink",WS_TABSTOP,157,169,64,10
     DEFPUSHBUTTON   "OK",IDOK,113,183,50,14,WS_DISABLED
     PUSHBUTTON      "Annulla",IDCANCEL,169,183,50,14

locale/ja/Notepad4.rc

@@ -1253,6 +1253,8 @@ FONT 8, "MS Shell Dlg", 400, 0, 0x1
 BEGIN
     CONTROL         "",IDC_FILEMRU,"SysListView32",LVS_REPORT | LVS_SINGLESEL | LVS_SHOWSELALWAYS | LVS_SHAREIMAGELISTS | LVS_AUTOARRANGE | LVS_NOCOLUMNHEADER | WS_BORDER | WS_TABSTOP,7,7,212,158
     AUTOCHECKBOX    "終了時に最近使ったファイル一覧を保存(&R)",IDC_SAVEMRU,7,169,155,10,WS_TABSTOP
+    LTEXT           "Maximum files:",IDC_MRU_COUNT_LABEL,7,185,64,8
+    EDITTEXT        IDC_MRU_COUNT_VALUE,73,183,30,13,ES_NUMBER | ES_AUTOHSCROLL
     CONTROL         "<a>履歴を消去</a>",IDC_EMPTY_MRU,"SysLink",WS_TABSTOP,172,169,48,10
     DEFPUSHBUTTON   "OK",IDOK,113,183,50,14,WS_DISABLED
     PUSHBUTTON     "キャンセル",IDCANCEL,169,183,50,14

locale/ko/Notepad4.rc

@@ -1253,6 +1253,8 @@ FONT 8, "MS Shell Dlg", 400, 0, 0x1
 BEGIN
     CONTROL         "",IDC_FILEMRU,"SysListView32",LVS_REPORT | LVS_SINGLESEL | LVS_SHOWSELALWAYS | LVS_SHAREIMAGELISTS | LVS_AUTOARRANGE | LVS_NOCOLUMNHEADER | WS_BORDER | WS_TABSTOP,7,7,212,158
     AUTOCHECKBOX    "종료 시 최근 파일 기억(&R)",IDC_SAVEMRU,7,169,155,10,WS_TABSTOP
+    LTEXT           "Maximum files:",IDC_MRU_COUNT_LABEL,7,185,64,8
+    EDITTEXT        IDC_MRU_COUNT_VALUE,73,183,30,13,ES_NUMBER | ES_AUTOHSCROLL
     CONTROL         "<a>기록 지우기</a>",IDC_EMPTY_MRU,"SysLink",WS_TABSTOP,172,169,48,10
     DEFPUSHBUTTON   "확인",IDOK,113,183,50,14,WS_DISABLED
     PUSHBUTTON      "취소",IDCANCEL,169,183,50,14

locale/pt-BR/Notepad4.rc

@@ -1253,6 +1253,8 @@ FONT 8, "MS Shell Dlg", 400, 0, 0x1
 BEGIN
     CONTROL         "",IDC_FILEMRU,"SysListView32",LVS_REPORT | LVS_SINGLESEL | LVS_SHOWSELALWAYS | LVS_SHAREIMAGELISTS | LVS_AUTOARRANGE | LVS_NOCOLUMNHEADER | WS_BORDER | WS_TABSTOP,7,7,212,158
     AUTOCHECKBOX    "&Remember recent files on exit.",IDC_SAVEMRU,7,169,155,10,WS_TABSTOP
+    LTEXT           "Maximum files:",IDC_MRU_COUNT_LABEL,7,185,64,8
+    EDITTEXT        IDC_MRU_COUNT_VALUE,73,183,30,13,ES_NUMBER | ES_AUTOHSCROLL
     CONTROL         "<a>Clear History</a>",IDC_EMPTY_MRU,"SysLink",WS_TABSTOP,172,169,48,10
     DEFPUSHBUTTON   "OK",IDOK,113,183,50,14,WS_DISABLED
     PUSHBUTTON      "Cancel",IDCANCEL,169,183,50,14

locale/zh-Hans/Notepad4.rc

@@ -1253,6 +1253,8 @@ FONT 8, "MS Shell Dlg", 400, 0, 0x1
 BEGIN
     CONTROL         "",IDC_FILEMRU,"SysListView32",LVS_REPORT | LVS_SINGLESEL | LVS_SHOWSELALWAYS | LVS_SHAREIMAGELISTS | LVS_AUTOARRANGE | LVS_NOCOLUMNHEADER | WS_BORDER | WS_TABSTOP,7,7,212,158
     AUTOCHECKBOX    "退出时记住最近的文件(&R)",IDC_SAVEMRU,7,169,155,10,WS_TABSTOP
+    LTEXT           "最大文件数:",IDC_MRU_COUNT_LABEL,7,185,64,8
+    EDITTEXT        IDC_MRU_COUNT_VALUE,73,183,30,13,ES_NUMBER | ES_AUTOHSCROLL
     CONTROL         "<a>清除历史</a>",IDC_EMPTY_MRU,"SysLink",WS_TABSTOP,172,169,48,10
     DEFPUSHBUTTON   "确定",IDOK,113,183,50,14,WS_DISABLED
     PUSHBUTTON      "取消",IDCANCEL,169,183,50,14

locale/zh-Hant/Notepad4.rc

@@ -1253,6 +1253,8 @@ FONT 8, "MS Shell Dlg", 400, 0, 0x1
 BEGIN
     CONTROL         "",IDC_FILEMRU,"SysListView32",LVS_REPORT | LVS_SINGLESEL | LVS_SHOWSELALWAYS | LVS_SHAREIMAGELISTS | LVS_AUTOARRANGE | LVS_NOCOLUMNHEADER | WS_BORDER | WS_TABSTOP,7,7,212,158
     AUTOCHECKBOX    "離開時記住最近的檔案(&R)",IDC_SAVEMRU,7,169,155,10,WS_TABSTOP
+    LTEXT           "最大檔案數:",IDC_MRU_COUNT_LABEL,7,185,64,8
+    EDITTEXT        IDC_MRU_COUNT_VALUE,73,183,30,13,ES_NUMBER | ES_AUTOHSCROLL
     CONTROL         "<a>清除歷史</a>",IDC_EMPTY_MRU,"SysLink",WS_TABSTOP,172,169,48,10
     DEFPUSHBUTTON   "確定",IDOK,113,183,50,14,WS_DISABLED
     PUSHBUTTON      "取消",IDCANCEL,169,183,50,14

src/Dialogs.cpp

@@ -984,6 +984,7 @@ bool AddToFavDlg(HWND hwnd, LPCWSTR lpszName, LPCWSTR lpszTarget) {
 //
 extern MRUList mruFile;
 extern bool bSaveRecentFiles;
+extern int iMaxRecentFiles;
 extern int cxFileMRUDlg;
 extern int cyFileMRUDlg;
 
@@ -1092,6 +1093,7 @@ static INT_PTR CALLBACK FileMRUDlgProc(HWND hwnd, UINT umsg, WPARAM wParam, LPAR
 
 		// Update view
 		SendWMCommand(hwnd, IDC_FILEMRU_UPDATE_VIEW);
+		SetDlgItemInt(hwnd, IDC_MRU_COUNT_VALUE, iMaxRecentFiles, FALSE);
 
 		if (bSaveRecentFiles) {
 			CheckDlgButton(hwnd, IDC_SAVEMRU, BST_CHECKED);
@@ -1108,6 +1110,8 @@ static INT_PTR CALLBACK FileMRUDlgProc(HWND hwnd, UINT umsg, WPARAM wParam, LPAR
 		GlobalFree(worker);
 
 		bSaveRecentFiles = IsButtonChecked(hwnd, IDC_SAVEMRU);
+		iMaxRecentFiles = GetDlgItemInt(hwnd, IDC_MRU_COUNT_VALUE, nullptr, FALSE);
+		iMaxRecentFiles = max(iMaxRecentFiles, MRU_MAXITEMS);
 
 		ResizeDlg_Destroy(hwnd, &cxFileMRUDlg, &cyFileMRUDlg);
 	}
@@ -1126,6 +1130,8 @@ static INT_PTR CALLBACK FileMRUDlgProc(HWND hwnd, UINT umsg, WPARAM wParam, LPAR
 		hdwp = DeferCtlPos(hdwp, hwnd, IDC_FILEMRU, dx, dy, SWP_NOMOVE);
 		hdwp = DeferCtlPos(hdwp, hwnd, IDC_EMPTY_MRU, dx, dy, SWP_NOSIZE);
 		hdwp = DeferCtlPos(hdwp, hwnd, IDC_SAVEMRU, 0, dy, SWP_NOSIZE);
+		hdwp = DeferCtlPos(hdwp, hwnd, IDC_MRU_COUNT_LABEL, 0, dy, SWP_NOSIZE);
+		hdwp = DeferCtlPos(hdwp, hwnd, IDC_MRU_COUNT_VALUE, 0, dy, SWP_NOSIZE);
 		EndDeferWindowPos(hdwp);
 		ListView_SetColumnWidth(GetDlgItem(hwnd, IDC_FILEMRU), 0, LVSCW_AUTOSIZE_USEHEADER);
 	}

src/Helpers.cpp

@@ -2296,11 +2296,12 @@ void ComboBox_AddStringA2W(UINT uCP, HWND hwnd, LPCSTR lpString) noexcept {
 //
 // MRU functions
 //
-void MRUList::Init(LPCWSTR pszRegKey, int flags) noexcept {
+void MRUList::Init(LPCWSTR pszRegKey, int capacity_, int flags) noexcept {
 	iSize = 0;
+	capacity = capacity_;
 	iFlags = flags;
 	szRegKey = pszRegKey;
-	memset(AsVoidPointer(pszItems), 0, sizeof(pszItems));
+	pszItems = static_cast<LPWSTR *>(NP2HeapAlloc(sizeof(LPWSTR) * capacity_));
 	Load();
 }
 
@@ -2316,7 +2317,7 @@ void MRUList::Add(LPCWSTR pszNew) noexcept {
 	const int flags = iFlags;
 	LPWSTR tchItem = nullptr;
 	int i;
-	for (i = 0; i < MRU_MAXITEMS; i++) {
+	for (i = 0; i < capacity; i++) {
 		WCHAR * const item = pszItems[i];
 		if (item == nullptr) {
 			break;
@@ -2326,7 +2327,7 @@ void MRUList::Add(LPCWSTR pszNew) noexcept {
 			break;
 		}
 	}
-	if (i == MRU_MAXITEMS) {
+	if (i == capacity) {
 		--i;
 		LocalFree(pszItems[i]);
 	} else if (i == iSize) {
@@ -2364,7 +2365,7 @@ void MRUList::Delete(int iIndex) noexcept {
 
 void MRUList::DeleteFileFromStore(LPCWSTR pszFile) const noexcept {
 	MRUList mruStore;
-	mruStore.Init(szRegKey, iFlags);
+	mruStore.Init(szRegKey, capacity, iFlags);
 	int deleted = 0;
 
 	for (int index = 0; index < mruStore.iSize; ) {
@@ -2384,10 +2385,10 @@ void MRUList::DeleteFileFromStore(LPCWSTR pszFile) const noexcept {
 
 	mruStore.iSize -= deleted;
 	mruStore.Save();
-	mruStore.Empty(false);
+	mruStore.Empty(false, true);
 }
 
-void MRUList::Empty(bool save) noexcept {
+void MRUList::Empty(bool save, bool destroy) noexcept {
 	for (int i = 0; i < iSize; i++) {
 		LocalFree(pszItems[i]);
 		pszItems[i] = nullptr;
@@ -2396,6 +2397,10 @@ void MRUList::Empty(bool save) noexcept {
 	if (save && StrNotEmpty(szIniFile)) {
 		IniClearSection(szRegKey);
 	}
+	if (destroy) {
+		NP2HeapFree(AsVoidPointer(pszItems));
+		pszItems = nullptr;
+	}
 }
 
 void MRUList::Load() noexcept {
@@ -2404,10 +2409,10 @@ void MRUList::Load() noexcept {
 	}
 
 	IniSectionParser section;
-	WCHAR *pIniSectionBuf = static_cast<WCHAR *>(NP2HeapAlloc(sizeof(WCHAR) * MAX_INI_SECTION_SIZE_MRU));
+	WCHAR *pIniSectionBuf = static_cast<WCHAR *>(NP2HeapAlloc(sizeof(WCHAR) * MAX_MRU_ITEM_SIZE * capacity));
 	const DWORD cchIniSection = static_cast<DWORD>(NP2HeapSize(pIniSectionBuf) / sizeof(WCHAR));
 
-	section.Init(MRU_MAXITEMS);
+	section.Init(capacity);
 	LoadIniSection(szRegKey, pIniSectionBuf, cchIniSection);
 	section.ParseArray(pIniSectionBuf, iFlags & MRUFlags_QuoteValue);
 	UINT n = 0;
@@ -2439,7 +2444,7 @@ void MRUList::Save() const noexcept {
 	}
 
 	WCHAR tchName[16];
-	WCHAR *pIniSectionBuf = static_cast<WCHAR *>(NP2HeapAlloc(sizeof(WCHAR) * MAX_INI_SECTION_SIZE_MRU));
+	WCHAR *pIniSectionBuf = static_cast<WCHAR *>(NP2HeapAlloc(sizeof(WCHAR) * MAX_MRU_ITEM_SIZE * capacity));
 	IniSectionBuilder section = { pIniSectionBuf };
 
 	for (int i = 0; i < iSize; i++) {
@@ -2464,23 +2469,19 @@ void MRUList::Save() const noexcept {
 }
 
 void MRUList::MergeSave(bool keep) noexcept {
-	if (!keep || StrIsEmpty(szIniFile)) {
-		Empty(true);
-		return;
-	}
-	if (iSize <= 0) {
-		return;
-	}
-
-	MRUList mruBase;
-	mruBase.Init(szRegKey, iFlags);
-	for (int i = iSize - 1; i >= 0; i--) {
-		mruBase.Add(pszItems[i]);
-	}
-
-	mruBase.Save();
-	mruBase.Empty(false);
-	Empty(false);
+	if (keep && iSize > 0 && StrNotEmpty(szIniFile)) {
+		LPWSTR * const current = pszItems;
+		const int count = iSize;
+		Init(szRegKey, capacity, iFlags);
+		for (int i = count - 1; i >= 0; i--) {
+			LPWSTR path = current[i];
+			Add(path);
+			LocalFree(path);
+		}
+		NP2HeapFree(AsVoidPointer(current));
+		Save();
+	}
+	Empty(!keep, true);
 }
 
 void MRUList::AddToCombobox(HWND hwnd) const noexcept {

src/Helpers.h

@@ -789,21 +789,22 @@ enum {
 	MRUFlags_PortableMyDocs = 8,
 };
 
-// MRU_MAXITEMS * (MAX_PATH + 4)
-#define MAX_INI_SECTION_SIZE_MRU	(8 * 1024)
+// num=path\0
+#define MAX_MRU_ITEM_SIZE	(MAX_PATH + 5)
 
 struct MRUList {
 	int		iSize;
+	int		capacity;
 	int		iFlags;
 	LPCWSTR szRegKey;
-	LPWSTR pszItems[MRU_MAXITEMS];
+	LPWSTR *pszItems;
 
-	void Init(LPCWSTR pszRegKey, int flags) noexcept;
+	void Init(LPCWSTR pszRegKey, int capacity_, int flags) noexcept;
 	void Add(LPCWSTR pszNew) noexcept;
 	void AddMultiline(LPCWSTR pszNew) noexcept;
 	void Delete(int iIndex) noexcept;
 	void DeleteFileFromStore(LPCWSTR pszFile) const noexcept;
-	void Empty(bool save) noexcept;
+	void Empty(bool save, bool destroy = false) noexcept;
 	void Load() noexcept;
 	void Save() const noexcept;
 	void MergeSave(bool keep) noexcept;

src/Notepad4.cpp

@@ -106,6 +106,7 @@ WCHAR	szIniFile[MAX_PATH] = L"";
 static WCHAR szIniFile2[MAX_PATH] = L"";
 static bool bSaveSettings;
 bool	bSaveRecentFiles;
+int iMaxRecentFiles;
 static bool bSaveFindReplace;
 static WCHAR tchLastSaveCopyDir[MAX_PATH] = L"";
 WCHAR	tchOpenWithDir[MAX_PATH];
@@ -1884,9 +1885,9 @@ LRESULT MsgCreate(HWND hwnd, WPARAM wParam, LPARAM lParam) noexcept {
 
 	// File MRU
 	const int flags = MRUFlags_FilePath | (static_cast<int>(flagRelativeFileMRU) * MRUFlags_RelativePath) | (static_cast<int>(flagPortableMyDocs) * MRUFlags_PortableMyDocs);
-	mruFile.Init(MRU_KEY_RECENT_FILES, flags);
-	mruFind.Init(MRU_KEY_RECENT_FIND, MRUFlags_QuoteValue);
-	mruReplace.Init(MRU_KEY_RECENT_REPLACE, MRUFlags_QuoteValue);
+	mruFile.Init(MRU_KEY_RECENT_FILES, iMaxRecentFiles, flags);
+	mruFind.Init(MRU_KEY_RECENT_FIND, MRU_MAXITEMS, MRUFlags_QuoteValue);
+	mruReplace.Init(MRU_KEY_RECENT_REPLACE, MRU_MAXITEMS, MRUFlags_QuoteValue);
 	return 0;
 }
 
@@ -5055,7 +5056,8 @@ LRESULT MsgNotify(HWND hwnd, WPARAM wParam, LPARAM lParam) {
 				MENUITEMINFO mii;
 				mii.cbSize = sizeof(MENUITEMINFO);
 				mii.fMask = MIIM_ID | MIIM_STRING | MIIM_BITMAP;
-				for (int i = 0; i < mruFile.iSize; i++) {
+				const int count = min(mruFile.iSize, MRU_MAXITEMS);
+				for (int i = 0; i < count; i++) {
 					LPCWSTR path = mruFile.pszItems[i];
 					HBITMAP hbmp = bitmapCache.Get(path);
 					mii.wID = i + IDM_RECENT_HISTORY_START;
@@ -5222,7 +5224,9 @@ void LoadSettings() noexcept {
 	pt.x = section.GetInt(L"WindowPosX", 0);
 	pt.y = section.GetInt(L"WindowPosY", 0);
 
-	bSaveRecentFiles = section.GetBool(L"SaveRecentFiles", false);
+	iValue = section.GetInt(L"SaveRecentFiles", MRU_MAXITEMS << 1);
+	bSaveRecentFiles = iValue & true;
+	iMaxRecentFiles = max(iValue >> 1, MRU_MAXITEMS);
 	bSaveFindReplace = section.GetBool(L"SaveFindReplace", false);
 	iValue = section.GetInt(L"FindReplaceOption", FindReplaceOption_Default);
 	iFindReplaceOption = iValue & 15;
@@ -5566,9 +5570,10 @@ void SaveSettings(bool bSaveSettingsNow) noexcept {
 		section.SetInt(L"WindowPosY", wi.y);
 	}
 
-	section.SetBoolEx(L"SaveRecentFiles", bSaveRecentFiles, false);
+	int iValue = (iMaxRecentFiles << 1) | static_cast<int>(bSaveRecentFiles);
+	section.SetIntEx(L"SaveRecentFiles", iValue, MRU_MAXITEMS << 1);
 	section.SetBoolEx(L"SaveFindReplace", bSaveFindReplace, false);
-	int iValue = iFindReplaceOption | ((efrData.option & FindReplaceOption_BehaviorMask) << 4);
+	iValue = iFindReplaceOption | ((efrData.option & FindReplaceOption_BehaviorMask) << 4);
 	section.SetIntEx(L"FindReplaceOption", iValue, FindReplaceOption_Default);
 	if (bSaveFindReplace) {
 		iValue = efrData.fuFlags | ((efrData.option & FindReplaceOption_SearchMask) << 10);

src/Notepad4.rc

@@ -1253,6 +1253,8 @@ FONT 8, "MS Shell Dlg", 400, 0, 0x1
 BEGIN
     CONTROL         "",IDC_FILEMRU,"SysListView32",LVS_REPORT | LVS_SINGLESEL | LVS_SHOWSELALWAYS | LVS_SHAREIMAGELISTS | LVS_AUTOARRANGE | LVS_NOCOLUMNHEADER | WS_BORDER | WS_TABSTOP,7,7,212,158
     AUTOCHECKBOX    "&Remember recent files on exit.",IDC_SAVEMRU,7,169,155,10,WS_TABSTOP
+    LTEXT           "Maximum files:",IDC_MRU_COUNT_LABEL,7,185,64,8
+    EDITTEXT        IDC_MRU_COUNT_VALUE,73,183,30,13,ES_NUMBER | ES_AUTOHSCROLL
     CONTROL         "<a>Clear History</a>",IDC_EMPTY_MRU,"SysLink",WS_TABSTOP,172,169,48,10
     DEFPUSHBUTTON   "OK",IDOK,113,183,50,14,WS_DISABLED
     PUSHBUTTON      "Cancel",IDCANCEL,169,183,50,14

src/resource.h

@@ -152,6 +152,8 @@
 #define IDC_FILEMRU						100
 #define IDC_SAVEMRU						102
 #define IDC_EMPTY_MRU					103
+#define IDC_MRU_COUNT_LABEL				104
+#define IDC_MRU_COUNT_VALUE				105
 #define IDC_FILEMRU_UPDATE_VIEW			110		// pseudo control
 // File Change Notification
 #define IDD_CHANGENOTIFY				110