Welcome to the Windows Template Library, version 10. This document contains the following topics:

• Introduction
• Features and Installation
• Packing List
• Class Overview
• ATL/WTL AppWizard
• WTL Releases

Introduction

Windows Template Library, or WTL, is a set of classes that extend ATL to support more complex user interfaces for either applications or various UI components, while maintaining the big advantage of ATL - small and fast code. WTL classes were designed to be the best and the easiest way to implement rich Win32 based UI for ATL based applications, servers, components, and controls.

WTL provides support for implementing many user interface elements, from frame and popup windows, to MDI, standard and common controls, common dialogs, property sheets and pages, GDI objects, UI updating, scrollable windows, splitter windows, command bars, etc. The WTL classes are mostly templated and use minimal instance data and inline functions. They were not designed as a framework, so they do not force a particular application model, and can accommodate any. The classes do not use hooks or thread local storage, so they have no restrictions that those techniques impose. They also have no inter-dependencies and can be freely mixed with straight SDK code. In summary, WTL delivers very small and efficient code, very close in size and speed to SDK programs, while presenting a more logical, object oriented model to a programmer.

Features and Installation

This is the ningth public release of WTL. This version is released under the Microsoft Public License, enabling developers from the WTL community to contribute to the library.

WTL classes can be used with all versions of VC++ from 2005 to the newest, 2017. AppWizard for Visual Studio is included.

The WTL classes are provided in header files located in the include directory. The only header files that must be included is atlapp.h, while others can be used when needed. The name of the file doesn't mean that you have to create an application, just that atlapp.h contains base definitions required for WTL projects.

To install WTL, just copy the whole directory structure, or unpack the archive file, to the location of your choice. Please be sure to add the WTL\include directory to the list of include directories in VC++, so that the compiler can find them when you include them in your projects.

Setup programs for the AppWizard are provided. After executing the setup script, ATL/WTL AppWizard will appear in the list of AppWizards when you select File.New.Project in VC++ IDE. The file AppWiz\setup.js is the setup script for all supported versions of Visual Studio.

To manually install AppWizard for VC++ 2005, copy all WTLAppWiz.* files from AppWiz\Files to VC++ projects directory, %VCDIR%\VC\vcprojects, where %VCDIR% is the directory where VC++ 2005 is installed. After that, open WTL10AppWiz.vsz and modify the line that contains ABSOLUTE_PATH to contain %WTLDIR%\AppWiz\Files, where %WTLDIR% is the directory where WTL files are.

Compiler/IDE/ATL support:

• Visual C++ 2005    (ATL 8.0)
• Visual C++ 2008    (ATL 9.0)
• Visual C++ 2010    (ATL 10.0)
• Visual C++ 2012    (ATL 11.0)
• Visual C++ 2013    (ATL 12.0)
• Visual C++ 2015    (ATL 14.0)
• Visual C++ 2017    (ATL 14.0)

Windows SDK support (optional):

• Windows SDK 6.0 or newer

Packing List

Class Overview

ATL/WTL AppWizard

ATL/WTL AppWizard generates starting code for a WTL application. It has options to create code for different application types and features.

You can choose the following options:

• Application type (SDI, multi thread SDI, MDI, TabView, Explorer, dialog based)
• Support for hosting ActiveX controls
• COM server support
• Class implementation in .CPP files
• Common Control manifest
• Unicode character set
• Toolbar, rebar, command bar, status bar
• View window, and it's type (generic, dialog form, or a list box, edit, list view, tree view, rich edit, HTML page, scroll window)
• For dialog based apps or a form based view window - support for hosting ActiveX controls in the dialog

ATL/WTL AppWizard supports VC++ 2005, 2008, 2010, 2012, 2013, 2015, and 2017.

WTL Releases

History

Changes Between WTL 10 and 9.1

TODO

Changes Between WTL 9.1 and 9.0

New and improved:

Full compatibility with VS2015
NuGet support and package
Microsoft Public License (MS-PL)
New sample: MemDlg - demonstrates use of in-memory dialogs

Fixes and enhancements:

Fixes for code analysis warnings
Fixes for strict const-qualification conformance (/Zc:strictStrings)
CEditFindReplaceImpl::UseShadowBuffer(): Use AtlGetCommCtrlVersion() instead of GetProcAddress()
Misc improvements: missing initialization, undefined messages, better #ifdefs
CFrameWndClassInfo: Use GetSystemMetrics() for icon sizes
BEGIN_MSG_MAP_EX and BEGIN_DDX_MAP: Fix for C4555: expression has no effect
CResource::LoadEx(): Fix for the wrong order for parameters to ::FindResourceEx()
CPaneContainerImpl:

• New extended styles: PANECNT_DIVIDER and PANECNT_GRADIENT
• Fixed background drawing for close button

CImageListManaged: Fix for assert when using attach or operator =
WTLExplorer sample cleanup
GenericWndClass::Register(): Fix for Windows CE
App Wizard: Improved code for generating project configurations
CSplitterImpl::OnCaptureChanged(): Fixed so it moves splitter bar only if move was in progress
CDynamicUpdateUI::UIRemoveUpdateElement() leaks memory if UPDUI_TEXT is set
CToolInfo and CToolTipCtrl: nIDTool argument should be UINT_PTR instead of UINT
CSplitterImpl: Added GetSplitterPosPct()
CCommandBarCtrlImpl: Fixed incorrect use of m_wndParent when AttachToWindow() is used

Changes Between WTL 9.0 and 8.0

New and improved:

Full compatibility with VS2008, VS2010, VS2012, and VS2013
New CRegKeyEx class for uniform support for registry
New MinCrtHelper functions for uniform support for _ATL_MIN_CRT
New DWM classes in atldwm.h
New Ribbon classes in atlribbon.h
New CDialogBaseUnits class
Extended DDX support to TabCtrl, ComboBox, ListBox and ListView selection index
Improved font handling in CHyperLink, CPaneContainer, CTabView
CHyperlink: Added options for auto-create link font and single-line mode
CBitmapButtonImpl: Added checked state, GetCheck()/SetCheck(), and check mode extended styles
UpdateUI: Added support for radio menu items for popup menus
Added support for new VersionHelpers.h in WinSDK 8.1 - GetVersionEx() is now deprecated
Improved global support for old SDK headers, and for original headers in VC6 and VC7.x
Global support for builds with NOMINMAX defined
Global support for builds with STRICT_TYPED_ITEMIDS defined
Global support for builds with _ATL_ALL_USER_WARNINGS defined
Splitter Window:

• Added keyboard handling
• Added default position for splitter bar
• Changed orientation from template argument to data member to reduce memory use
• Added SPLIT_GRADIENTBAR and SPLIT_FIXEDBARSIZE extended styles

Added CImageListManaged to manage the lifetime of wrapped image list
Added Vista standard menu bar look option for Command bar
Added new Rich Edit wrappers for _RICHEDIT_VER >= 0x0800
Added new Win8 methods to Theme classes
Added override of SubclassWindow() to CSplitterWindowImpl, CPaneContainerImpl, CTabViewImpl,
  CScrollImpl, CMapScrollImpl, CZoomScrollImpl, and CScrollContainerImpl
CZoomScrollImpl:

• Added zoom child windows option
• Added zoom scale max limit

AppWizard:

• Support for VS2008, VS2010, VS2012, and VS2013
• New universal setup for all versions of Visual Studio
• Support for ribbon control

Updated samples and added VS2005 project files
New sample: MTPad7 - demonstrates Ribbon UI

Fixes and enhancements:

General:

• Fixed security warning for _vstprintf in atlapp.h
• Added RunTimeHelper::IsThemeAvailable that detects if themes can be used in the app
• VS2012: DLL version functions are defined as they are removed from ATL11
• Added CWndProcThunk initialization for _ATL_VER >= 0x0800
• Added RunTimeHelper::SizeOf_TOOLINFO() for different Windows versions at runtime
• Added AtlCreateControlFont()

Controls:

• Extended CListViewCtrl::SelectItem() to multi-selection list view controls
• Added another variant of CListViewCtrl::FindItem for strings
• Added new CToolBarCtrl methods - InsertSeparator() and AddSeparator()
• Added CToolBarCtrl::GetItemDropDownRect()
• Added another variant of CToolTipCtrl::TrackActivate()

Cracked Handlers:

• Fixed handlers with menu arguments
• Fixed MSG_WM_SYSCOMMAND handler
• Added MSG_WM_MOUSEHWHEEL handler

App Wizard:

• Fix for TabView project code generation
• Improved generated code for VC++ Express to support various versions of ATL
• Fix for missing UIUpdateChildWindows() in dialog projects

App Wizard CE / App Wizard Mobile:

• Updated AppWizCE for VS2008 - used different CLSID for Platforms object
• Fix: VS2008 uses _SECURE_ATL code only
• Fix for resource creation failure

Misc:

• Fix: CLogFont uses ::GetDeviceCaps with wrong default hDC = NULL
• Fixed CPen::GetExtLogPen
• Fixed CFrameWindowImpl::OnToolTipText*() handlers not to reset text buffer
• Added support for chevron menus for multi-line toolbars
• Fix: CFileDialog(false) fails on Windows Mobile 5 or 6
• Fix: CFolderDialog::SetOKText should use lParam for string
• Added CFolderDialog::SetPidlRoot()
• Fixed CMemDlgTemplate::AddControl
• Added option to disable item dragging in CTabViewImpl
• Fixed CTabView::ShowTabControl(false) and UpdateLayout() to hide empty space
• CTabView: Fixed value of the active page when inserting pages before it
• PaneContainer: Added support for vertical title bar text
• atlsplit.h: Added missing support for WM_PRINTCLIENT
• Fix: CScrollImpl should not scroll horizontally if not needed
• Fixed CScrollImpl::ScrollToView() to use offset correctly
• Fixed CPrintDialogExImpl::GetDefaults()
• atltheme.h: Added CBufferedAnimation::StopAllAnimations()
• Added support for I64 format to CString::Format()
• Fix: CStdIndirectDialogImpl - DLGTEMPLATEEX not supported on Mobile devices
• Fix: Missing CRichInkCtrlT::SetSel(), added CRichInkCtrlT::Undo()

Changes Between WTL 8.0 and 7.5

New and improved:

RunTimeHelper functions for correct struct sizes on different versions of Windows
ModuleHelper functions for uniform support of ATL3 and ATL7 module classes
SecureHelper functions for support of secure and non-secure run-time functions
Support for new Vista features:

• Support for new messages for common controls, dialogs, etc.
• Support for TaskDialog
• New Shell file dialogs (IFileOpenDialog and IFileSaveDialog)
• New Aero Wizard support classes
• New classes for Buffered Paint and Buffered Animation

New TabView classes
New dialog class that uses in-memory dialog templates
New CMultiFileDialogImpl and CMultiFileDialog classes that support multi-select file dialogs
Added message cracker handler prototypes for all handlers
Replaced use of _alloca with CTempBuffer everywhere (and added CTempBuffer version for ATL3)
New classes for find/replace support for Edit or RichEdit
New class CFileDialogEx that supports GetOpenFileNameEx for Windows Mobile 5
New features for the App Wizard:

• New default version values
• Unicode build option
• Support for TabView applications
• Support for Explorer applications

Updates for the desktop App Wizard:

• Added calls to set font for views based on controls that use font
• Added scroll window as another view type

Support for VC2005 Express:

• Setup for VS2005x
• Changes in default.js to take into account that VC2005x does not have a resource editor
• Generated code allows use of ATL3 from the Platform SDK

New AppWizard for Mobile 2003 and 2005 platforms
New samples:

• Aero - demonstrates the Vista Glass UI
• MiniPie - Windows Mobile 2005 PPC and Smartphone sample
• TabBrowser - a web browser using TabView class

MTPad sample updated to show usage of CRichEditFindReplaceImpl and CEditCommands/CRichEditCommands

Fixes and enhancements:

Command Bar:

• Added support for menu items with bitmaps on Vista
• Fix: Keyboard cues shown even if the window is disabled

CFolderDialog:

• Added support for PIDLs in addition to the file path
• Replaced use of SHGetMalloc with CoTaskMemFree

Scroll Windows:

• Fix: CZoomScrollImpl - some methods should be overridable
• Added support for WM_MOUSEHWHEEL in CScrollImpl

App Wizard:

• Fix: AppWizard fails to add files if C:\Temp does not exist
• Fix: App Wizard generates security warning when loaded
• Fix: App Wizard generates level 4 warning for modal dlg project
• Fix: App Wizard setupXX.js scripts silently fail on Vista
• Fix: Added code to unregister message filer and idle processing
• Fix: Added WS_CLIPSIBLINGS to dialog forms to avoid rebar drawing problems

App Wizard CE:

• Fix: App Wizard CE should not have rich edit as a view option
• Fix: App Wizard CE generates level 4 warnings for single instance apps
• Added support for Windows Mobile 6 SDKs

Cracked Handlers:

• Fix: Corrected MSG_WM_TIMER and handler prototype, removed unused argument (breaking change)
• Fix: atlcrack.h does not support WTL namespace

CDialogResize:

• Added SetIcon(NULL, FALSE) for CDialogResize to remove the generic icon for resizable dialogs
• Fix: Enabled size/move for both X and Y
• Added center flags for controls

CFrameWindowImpl:

• Fix: Const issue with title argument of AddSimpleReBarBand
• Fix: DECLARE_FRAME_WND_CLASS definition missing WTL namespace

Windows CE:

• Fix: Some symbols not defined for CE 4.0
• Fix: Incorrect WinCE exclusions
• Fix: Pocket PC - assert after navigating a CHyperLink
• Fix: Property sheet with listview on WM5.0 causes stack overflow
• Fix: CFindFile::GetFilePath() fails on diskless root requests
• Fix: VS 2005 dialog editor bug - DS_FIXEDSYS used but not defined
• Fix: Windows Mobile 2005 compatibility issues
• Fix: CFullScreenFrame on Smartphone 20003
• Fix: SmartPhone back key handling in CAppWindow
• Added orientation aware support to CAppStdDialogImpl
• Added CAxDialogImpl base for CStdDialogImpl, CStdDialogResizeImpl and CStdOrientedDialogImpl
• Added various CStdDialogxxx enhancements
• Fix: CStdDialogBase does not scale dialog title on VGA
• Fix: DIBINFO16 triggers code analysis warning
• Added LPCTSTR AtlLoadString(UINT uID) - CE only overload
• Added imaging draw support to CZoomScrollImpl
• Added CBottomTabViewImpl and CBottomTabView classes for PPC

CFindFile:

• Fix: CFindFile class uses CRT functions
• Fix: FindFile() uses lstrcpy without checking length

General:

• Fix: Adding ReBar bands fails with new Windows SDK
• Added support for relative include paths
• Fix: Using std::min and std::max
• Fix: Problems using WTL with MFC
• Improved support for Secure CRT
• Changed implementation of CSize, CPoint, CRect, and CString to be inside class definitions
• atltheme.h: Corrected method signatures for differences in uxtheme.h versions
• Replaced malloc/free with new/delete where appropriate

Misc:

• Fix: CString::FormatV can cause GPF with Unicode strings
• CHyperLink: Added handler for WM_SIZE
• Fix: CTheme needs constructor from HTHEME handle
• Added Add* methods to several control classes in atlctrls.h to augment Insert* methods
• Fix: Incorrect casting in CRichEditCtrl::GetLine()
• Fix: CTreeViewCtrl::GetItemState changed to return only state-bits as specified by mask
• Fix: CBitmapButton::DoPaint - wrong button image
• Added another variant of CDCT::Drawtext with LPTSTR argument that allows text change
• Fix: CRecentDocumentListBase::AddToList() uses lstrcpy
• Fix: AtlLoadString(uID, lpBuffer, nBufferMax) has unnecessary code
• Fix: CCursor::LoadOEMCursor asserts on IDC_HAND
• Fix: Memory leak when using CRT functions while printing
• Fix: Undefined CString namespace
• CPaneContainer: Added border styles
• CSplitterImpl: Added SetSplitterPosPct, and changed App Wizard code to use it

Changes Between WTL 7.5 and 7.1

New and improved:

VS2005 Compatibility: Added support for Visual Studio 2005 - both desktop and Windows CE
Classes for icons, cursors, accelerator tables
CSortListViewImpl, CSortListViewCtrlImpl, and CSortListViewCtrl classes
Impl classes for Wizard 97 style wizards: CWizard97Sheet, CWizard97Page, CWizard97ExteriorPage, CWizard97InteriorPage
CMemoryDC and CDoubleBufferWindowImpl classes
Windows CE specific classes in new header, atlwince.h
CScrollContainer class
CZoomScrollImpl and CZoomScrollWindowImpl classes
CZoomPrintPreviewWindowImpl and CZoomPrintPreviewWindow classes
Global functions: AtlGetBitmapResourceInfo, AtlGetBitmapResourceBitsPerPixel
New REFLECT_* macros to enable selective reflection of messages
App Wizard: Added App Wizard for VS2005
App Wizard: Added App Wizard for Windows CE for VS2005
New samples: WTLExplorer, ImageView, SPControls

Fixes and enhancements:

Command Bar:

• DrawBitmapDisabled() doesn't work correctly on Longhorn
• Submenu size not correct if command bar is off-screen
• Added handler for WM_SETTINGCHANGE to improve theme color changes
• Better support for 8/16/24-bit images
• Command Bar with 2 Levels of submenus remains active
• Hook procedure fails to call next hook
• OnDestroy() should not decrement hook use if AttachToWindow() is used

MDI Command Bar:

• Grows bigger if you switch between two maximized MDI child window types
• Move all hook messages processing to a separate function and use pT
• MDI icon & buttons should have themed background
• Should make MDI buttons gray when inactive
   

CString:

• Helper functions not overloaded properly
• Some return types are 'const CString&' and could be just 'CString&'
• FormatV() passes size in characters to _alloca, should be in bytes
• Fixed stack corruption in FormatV()
• Improved boundaries checking for integer overflows/underflows
   

CScrollImpl:

• Scroll bars problem when changing range
• SetScrollOffset() doesn't move child windows
• Range and thumb drawing problems
• Possible overflow in OnMouseWheel()
• Support for SIF_DISABLENOSCROLL
• Added ScrollToView methods

CMapScrollImpl:

• SetScrollSize() incorrectly inverts xMin and xMax
• SetScrollSize() uses bRedraw = NULL

CTheme:

• GetThemeFont() bad parameter ordering
• Uses LOGFONT and TEXTMETRIC incorrectly (SDK header problem)

CFrameWindowImpl:

• Improved sizing for Windows CE
• CreateSimpleToolBarCtrl() should handle 24-bit bitmaps
• Changed WinCE CCECommandBarCtrl typedef and added a PPC CMenuBarCtrl
• UpdatesBarPosition() doesn't take Windows CE command bar into account

CDialogResize:

• Enabled use for Windows CE
• Add WS_EX_DLGMODALFRAME to prevent empty icon

CReBarCtrl:

• Background not painted when resized
• Fixed typo in LockBands()
• MaximizeBand needs BOOL fIdeal argument

CRichEdit:

• GetSelText() should support UNICODE strings
• GetSelText() uses lpstr instead of lpstrText

CHyperLink:

• Added _xttoi() helper to avoid CRT in _ATL_MIN_CRT
• Fixed resource leak by destroying tooltip window
   

CPropertySheetImpl:

• Improved support for Windows CE
• Sheet without title generates a memory fault on Windows CE

CFolderDialog:

• Add a way to set an initial folder
• Uses BFFM_IUNKNOWN which is not always defined

Update UI:

• Add support to dynamically add UpdateUI elements
• UIUpdateMenuBarElement() should use EnableMenu() instead of SetMenuItemInfo() for Windows CE

CDC:

• FillSolidRect() should restore background color
• GetClipRgn() method missing

Printing:

• CPrinter::CreatePrinterDC() and CreatePrinterIC() members should be const
• CDevMode::CopyToHDEVMODE() is missing a call to GlobalUnlock()

AppWizard:

• Use WTL subfolder to create WTL category for VC7.x and VC8
• Rename files from WTLApp7x to WTLAppWiz, and add VS2005 setup file
• Fixed setup for x64

General:

• Redefinition of _MAX_FNAME with Dinkumware Standard C++ Library on Windows CE
• Added ATLVERIFY macro for ATL3
• Support warning level 4
• Missing methods CToolBarCtrl::SetButtonInfo, InsertButton, CTabCtrl::SetItem, CComboBoxEx::InsertItem, SetItem
• Missing support for WM_PRINTCLIENT
• Removed usage of IsBad* functions
• Fixed various compiler warnings
• TCHAR bugs in various files
• Improved Windows CE support and changes for Visual Studio 2005

Misc:

• CMDIChildWindowImpl: HMENU should be destroyed in OnDestroy()
• CStatic: Should use STM_SETIMAGE instead of STM_SETICON for SetIcon() on Windows CE
• CButton: GetButtonStyle() uses wrong mask
• CImageList: Made Duplicate() method const
• CListViewCtrl: Made SubItemHitTest() method const
• CTreeViewCtrl: GetItem() and SetItem() incorrectly restricted to _WIN32_IE >= 0x0500
• CMonthCalendarCtrl: GetMonthRange() should be GetMaxTodayWidth()
• CDateTimePickerCtrl: SetFormat() should have const argument
• CBitmapButtonImpl: Fixed resource leak by destroying tooltip window
• CMultiPaneStatusBarCtrlImpl: Cannot handle wide panes without resource strings
• CCheckListViewCtrlImpl: Call CheckSelectedItems() through pT
• CPaneContainerImpl: SetPaneContainerExtendedStyle() should use pT to call CalcSize()
• CFindFile: Enabled for Windows CE
• CPropertyPageImpl: Added handlers for callback messages
• atlcrack.h: Added return value for MSG_WM_APPCOMMAND
• CMenu: New method variants: AppendMenu, InsterMenu, ModifyMenu
• CFont: Added arguments for bold and italic to CreatePointFont()
• CSize: Added scalar operators for WTL::CSize and ATL::CSize
• CRecentDocumentList: Allow changing the "DocumentCount" and "Document%i" registry values strings
• CSplitterWindowImpl: Enabled use for Windows CE

Changes Between WTL 7.1 and 7.0

New and improved:

VC7 Compatibility: Support for ATL7 Module classes and critical sections and AppWizard setup for VC++ 7.1

Windows CE Support: Full compatibility with Windows CE platforms and AppWizard for eMbedded Visual C++

Namespace Support: Automatic "using ATL" (ATL7 only) or "using WTL" can now be turned off

CHyperLink New Features: not underlined, underlined when hover, command button, link tags

CCustomWaitCursor class supports custom and animated wait cursors

AtlCreateBoldFont() for creating bold version of an existing font

Fixes and enhancements:

CFrameWindowImpl:

• CreateSimpleToolBarCtrl() - remove dead code, improve error checking, add a global function that uses it
• Fix - PrepareChevronMenu() fails to get toolbar strings for Unicode
• CFrameWindowImplBase::Create() - improve ASSERT not to use m_hWnd if creation fails
• Fix - CFrameWndClassInfo::Register - should use %p formatting only for _WIN32_WINNT >= 0x0500 or for _WIN64
• Fix - Chevron menus not positioned correctly with RTL
• Fix - CMDIChildWindowImpl: Problems creating maximized child windows and handling focus
• Fix - CMDIChildWindowImpl: Should activate on WM_MOUSEACTIVATE

UpdateUI:

• Fix - Incorrectly clears default item from the system menu in MDI apps
• Added UISetCheck with bool instead of int for the check state

DDX:

• Fix - Doesn't provide a way to change floating point precision
• Added DDX_CONTROL_HANDLE for non-CWindowImpl objects
• Added DDX_Check variant with bool instead of int for the check state

Command Bar:

• Fix - OnDrawItem() and OnMeasureItem() don't do a good check for owner-draw menu items
• Fix - Disabled 32-bit images not painted correctly in 3D menu mode
• Fix - Popup menus not positioned correctly with RTL
• Fix - Uses GCL_HICONSM instead of GCLP_HICONSM with GetClassLongPtr()

MDI Command Bar:

• Fix - Doesn't refresh icon if MDI children are different
• OnAllHookMessages() - improve code to handle MDI child window class icon
• Fix - OnNcLButtonDown() uses TPM_VERPOSANIMATION without checking Windows version
• Fix - Maximized MDI buttons in wrong place for RTL
• Should adjust cxIdeal for rebar bands for IE4
• Add support for different top-level menu widths by handling ideal size for rebar bands

AppWizard:

• Fix - Doesn't support MSDI application as a COM Server
• Fix - MDI with Form View - stack overflow closing maximized MDI child windows
• Fix - Generates VERSION resource name 'test1' regardless of the project name
• Fix - Dialog project with control hosting doesn't derive a dialog from CAxDialogImpl
• Fix - COM Server doesn't register type library
• Fix - COM Server doesn't register AppID properly

CTreeViewCtrl:

• Fix - GetItemData() needs better return value
• Fix - GetItemState() should use TVM_GETITEMSTATE instead of TVM_GETITEM for IE5
• GetItem() and SetItem() - added new variants that use TVITEMEX
• Fix - SortChildren() should add recurse flag argument
• Fix - CTreeItem doesn't support CTreeViewCtrlExT that has different TBase than CWindow

CThemeImpl:

• Fix - Uses scalar delete instead of the vector one
• Fix - EnableThemeDialogTexture() argument is BOOL instead of DWORD

CFolderDialog:

• Fix - EnableOK() passes wrong arguments to BFFM_ENABLEOK
• Fix - Always clears m_hWnd, which causes problem for nested messages

CDialogResize:

• Fix - DlgResize_Init() forces dialog to be visible by using SetRedraw()
• Forcing WS_THICKFRAME is not enough to make dialog resizable
• Min track size should be used for child dialogs as well
• Fix - DlgResize_PositionControl() incorrectly checks return value from MapWindowPoints()

CAppModule:

• Fix - CAppModule methods not thread-safe
• Fix - AddSettingChangeNotify() unusable in multithreaded apps because of delayed initialization

CString:

• Fix - Delete() doesn't allow deleting more than the length of the string
• Fix - Append() can cause buffer overrun
• Fix - MakeReverse() can cause an infinite loop
• Fix - _cstrstr() unnecessarily inefficient
• Fix - FindOneOf() is not DBCS-aware
• Fix - Format() does not recognize %E
• Fix - TrimLeft() and TrimRight() are only half-way DBCS-aware
• Fix - May cause assertions or undefined behavior with SBCS

CRecentDocumentList:

• Fix - SetMaxEntries() has an incorrect ASSERT
• Add CString variant of the GetFromList() method
• Add a way to replace command IDs used for the MRU list
• Add a way to replace registry key name

Misc:

• CMessageLoop::Run() - improve the loop by checking bDoIdle before calling PeekMessage()
• CServerAppModule: Clean-up unused code
• Fix - CServerAppModule::MonitorProc() - no need to call _endthreadex()
• Fix - CListBox::GetText() and CComboBox::GetLBText() (CString variants) don't check for LBERR/CB_ERR
• Fix - CAxPropertyPageImpl doesn't create ActiveX controls with ATL7
• Fix - CDC::GetTextExtentExPoint() missing
• CDC::SetWindowExt() should have default value NULL for the lpSizeRet argument
• Fix - CPropertySheetWindow missing methods for PSM_INSERTPAGE, PSM_SETHEADERTITLE, and PSM_SETHEADERSUBTITLE; AddPage should return BOOL
• Fix - CMapScrollImpl::SetScrollSize() uses wrong variable
• Fix - CHyperLink: WM_UPDATEUISTATE causes repaint without WM_PAINT
• Fix - CUpDownCtrl::GetPos() returns incorrect value
• Fix - CUpDownCtrl::GetPos32() doesn't have default arg value
• Fix - CMultiPaneStatusBarCtrl: Always uses size grip for positioning panes
• Fix - CTabCtrl::InsertItem() should return int, not BOOL
• CReBarCtrl: Added LockBands() method
• Fix - CFont: uninitialized variable passed to DPtoLP
• Fix - CPrintDialogImpl: Crash when displaying Print Setup dialog
• Fix - CPageSetupDialogImpl::PaintHookProc() - should use T* and return UINT_PTR instead of UINT
• Fix - CPrintJob doesn't support printing to a file
• Fix - CSplitterImpl: Doesn't handle WM_CAPTURECHANGED - can get in an invalid state
• CRichEditCtrl: Add method for EM_SETTABSTOPS
• Fix - CFindFile::GetFilePath() checks for a trailing slash, but doesn't use that info

General:

• Fix - Problems compiling with /Zc:forScope ('for' loop scope conformance)
• Use named constants instead of values for pixel sizes, buffer lengths, etc.
• Support building with Managed C++ (/CLR)
• CMenuItemInfo - add run-time support for different versions of Windows
• CommCtrl.h change - additional fields in IMAGELISTDRAWPARAMS now depend on _WIN32_IE instead of _WIN32_WINNT
• Fix - Incorrect usage of CRegKey::QueryStringValue()
• Fix - Operator = for GDI and USER wrappers leaks handle if it's managed variant
• Fix - GDI and USER wrappers break under self-assignments
• Fix - Chaining messages with cracked handlers broken with ATL7
• Initialize all variables and structures prior to use
• Use new common control struct names

Changes Between WTL 7.0 and 3.1

New classes and features:

Support for new Common Controls v6 messages

Support for Visual Studio .NET and ATL 7.0

WTLApp70 - new AppWizard for Visual Studio .NET

CThemeImpl - implements support for Windows XP themes

CMDICommandBarCtrl - implements Command Bar for MDI applications

Fixes and enhancements:

Command Bar:

• Bogus assert in OnDestroy
• Check marks can be truncated in large font settings
• Use pT to access GetSystemSettings, DrawMenuText, DrawBitmapDisabled, Draw3DCheckmark, DoPopupMenu, DoTrackPopupMenu, TakeFocus, GiveFocusBack, so they can be overridden
• No hot-tracking if main window is not active
• Top level items not painted inactive if app looses activation while drop down menu is displayed
• Added Windows XP flat menus support
• Drop-down menu doesn't close if clicked again (Windows XP only)
• Menu item text and accelerator text too close with some settings
• Keyboard can still access clipped menu items
• Added support for hiding keyboard navigation indicators until Alt key is pressed (system setting)
• Added AddIcon and ReplaceIcon variants for icon resources
• Image size calculated differently in different places
• Add support for 32-bit (alpha channel) bitmaps for Windows XP
• Fixed width calculation for default menu items

CFrameWindowImpl:

• AddSimpleReBarBandCtrl sets toolbar extended styles without preserving old ones
• PrepareChevronMenu should not create menu items for buttons with TBSTATE_HIDDEN
• TPM_VERPOSANIMATION will not be defined in atlframe.h if atlctrlw.h is included first
• CreateSimpleToolBarCtrl - height might be too small if large font is used
• PrepareChevronMenu uses TB_GETBUTTONTEXT, better use TB_GETBUTTONINFO
• Chevron menu doesn't close if clicked again (Windows XP only)
• Should check local classes for superclassing
• Add support for 32-bit (alpha channel) bitmaps for Windows XP

Update UI:

• UISetText can clear other menu item flags
• CUpdateUI::UIUpdateState assigns value with |= instead of =
• Added UISetDefault() and fix default state to work with menus

CString:

• GetBuffer() and GetBufferSetLength() should return NULL in out-of-memory condition
• Added missing methods: separate c-tors for LPCSTR and LPCWSTR, CollateNoCase, TrimRight and TrimLeft variants, Find variants, moved FormatV to public
• Fix _IsValidString usage
• FormatV incorrectly calculates buffer size (too big)
• Usage of _ttoi causes problems with _ATL_MIN_CRT in VC7

CDC:

• GetTabbedTextExtent() should return DWORD instead of BOOL
• Add FillRect() that accept color index instead of a brush handle
• DrawDragRect() leaks regions and a brush
• Improved DitherBlt() - added brushes as arguments for used colors
• Added DrawShadowText() (uses LoadLibrary/GetProcAddress to run on older Windows)

CListViewCtrl:

• SetItemState should use LVM_SETITEMSTATE
• SetItemCount should return a BOOL

CRichEditCtrl:

• Added SetCharFormat() variant that accepts flags (for SCF_ALL)
• CharFromPos() should pass a pointer to POINTL in lParam
• GetTextRange() - should add Unicode variant for rich edit version >= 2
• Added another FormatRange() that can accept a pointer to FORMATRANGE (needed for passing NULL to clear cache)

CHyperLink:

• Allow overriding of Navigate and CalcLabelRect
• Doesn't handle right or center alignment

CColorDialog:

• Has static variables that were not initialized with _ATL_MIN_CRT
• Fixed HookProc for ColorOK message - the message is not sent, but the hook proc is called directly

atlcrack.h:

• MSG_WM_TIMER crack macro should cast to TIMERPROC instead of TIMERPROC*
• Add cracked handlers for all new messages in Common Controls 6

atlapp.h:

• Fixed problems with atlTraceUI with ATL7
• #ifdefs for ATL7 were in the wrong place

atlctrls.h:

• Add support in control classes for all new messages in Common Controls 6

CRecentDocumentList:

• AtlCompactPath corrupts memory if filename is longer than requested compact size
• ReadFromRegistry incorrectly checks for error when reading from registry

CSplitterWindow:

• Incorrect calculation of middle position
• 3D border now drawn only if WS_EX_CLIENTEDGE is set

Printing:

• Uses DWORD instead of an int for a job ID
• CPrintJob::CancelPrintJob shouldn't have a return value

Misc:

• CRegKey::QueryValue and SetValue are deprecated in ATL7
• Added direct support for ATL7
• Replace ScreenToClient and ClientToScreen with MapWindowPoints to support RTL layout
• CFindFile::GetFilePath(LPTSTR...) returns path without the file name
• MDI: Updating client edge in WM_WINDOWPOSCHANGING causes minimize/maximize/restore animation problems, use WM_WINDOWPOSCHANGED
• Custom Draw: Added CCustomDraw::OnSubItemPrePaint() overrideable method
• CFolderDialogImpl uses 'this' for BROWSEINFO.lParam instead of T*
• CImageList::Destroy shouldn't use Detach()
• ATL7 has its own AtlLoadString
• CPropertySheet doesn't close when you press X button
• Fixed problems for _U_STRINGorID and others that moved from atlbase.h to atlwin.h in ATL7
• Add AtlMessageBox() that accepts either in-memory or resource strings
• CScrollImpl: fixed bug with scrolling child windows
• CPropertyPageImpl: Add new notification handlers to enable direct return values (use #ifdef _WTL_NEW_PAGE_NOTIFY_HANDLERS to use them)
• Add AtlInitCommonControls() to simplify use
• DDX: Fixed usage of the size of char arrays for DDX
• CPageSetupDialog: changed usage of CWndProcThunk because of changes in ATL7
• Fix confusing precedence in expressions
• Removed forward declarations because default values for template arguments shouldn't be specified in two places (we don't need them anyway)
• Win64: Fix /Wp64 warnings from 32-bit VC7 compiler caused by SDK headers
• Fix direct usage of English strings (they can be #defined to something else now)
• AtlGetCommCtrlVersion not defined if _ATL_DLL is in ATL 3.0 (and CmdBar is using it)

AppWizard:

• Added manifest for Common Controls 6
• Loading Rich Edit DLL should use HMODULE
• Should not use atlimpl.cpp for ATL7
• Added message handler prototypes to generated files
• VERSION resource always has VALUE "OLESelfRegister" (now only for COM servers)
• Added option for putting implementation in CPP files
• d-tor for the thread manager class in MSDI project executed after the heap is destroyed
• Wrong settings when changing to a dialog project and back (AppWizard 6.0 only)
• Remove cut/copy/paste accelerators for form view and dialogs projects
• Fix toolbar bitmaps so they are not transparent (problem with Windows XP flat menus only)
• Used CMDICommandBarCtrl for MDI apps
• Add symbols required for VC7 Class Wizard to recognize an ATL project
• Changed default styles for the rebar, so it does look OK without CmdBar and with manifest
• Added setup programs for both AppWizards
• Remove ignored resource attributes: MOVEABLE, PURE, etc. (AppWizard 7.0 only)
• Add call to DefWindowProc to WinMain to resolve possible problems if MSLU is used

Samples:

• Updated toolbar bitmaps, added #ifdefs for ATL7, added manifest file for CommCtrl6, qualified _U_RECT with WTL namespace, updated use of deprecated CRegKey functions, added VC7 projects
• Added Alpha sample

Changes Between WTL 3.1 and 3.0

New classes:

CPaneContainer - implements a window that provides a title bar and a close button (like Explorer)

CDialogResize - an MI class that allows resizing of dialogs (or any windows with child windows/controls)

CAxPropertyPageImpl - implements a property page that can host ActiveX controls

Fixes and enhancements:

CServerAppModule now clears m_hEventShutdown to avoid calling CloseHandle twice

CString:

• operator += now leaves original string intact if it's out of memory
• Fixed bad DWORD_PTR usage in TrimRight, TrimLeft, Replace, Remove
• Removed dependencies on CRT for projects that don't use it
• Insert - fixed string corruption in release builds
• Added optional floating point formatting (for projects that use CRT)

CEdit and CRichEditCtrl: SetSelAll and SetSelNone had reversed implementation

atlres.h: Changed IDs so that they are compatible with MFC's afxres.h

Command Bar:

• Added LoadMappedImages()
• Changed handling of left and right arrow keys so that they don't close context menus
• Add code to handle left/right arrow keys correctly on mirrored (RTL) systems
• Removed handler that eats parent window's WM_SETTINGCHANGE
• Fixed bitmap resource leak in Draw3DCheckmark
• Fixed incorrect usage of CharLower in OnMenuChar
• Fixed wrong color for the disabled items in hi-contrast mode
• Added code to gray menu items if main window is inactive
• Fixed keyboard mnemonic handling for IE 4
• Fixed hook problems with multiple cmdbars in the same thread
• Added support for radio menu items
• Added support for disabled top-level menu items (also added in CFrameWindowImpl::PrepareChevronMenu)
• Added keyboard shortcut (Alt+/) to invoke chevron menu
• Added support to override menu item length in a derived class

CBitmapButton:

• Bypassed BUTTON DefWindowProc for hover style so that the button doesn't take focus
• Added BMPBTN_AUTOFIRE extended style

CDC:

• Added _WTL_FORWARD_DECLARE_CSTRING define to allow usage of methods that accept CString
• Fixed errors in GetTextFace and GetMenuItemString
• Added GetCharWidth32
• Added DrawIconEx method

CMenu:

• Implement following missing methods:
      GetMenuDefaultItem
      GetMenuInfo
      GetMenuItemRect
      HiliteMenuItem
      IsMenu
      MenuItemFromPoint
      SetMenuDefaultItem
      SetMenuInfo
• GetMenuString - fixed to include space for terminating NULL character in returning string

GDI and USER classes should destroy the GDI/USER objects in Attach if GDI/USER resource is managed

CFrameWindowImpl:

• OnToolTipText shouldn't save tool tip text if it's not for a menu
• AddSimpleReBarBandCtrl now adds chevron style only for toolbars with buttons
• AddSimpleReBarBand(Ctrl) - calc band ID if not specified

CRecentDocumentList:

• Fix - UpdateMenu deletes wrong menu item when the list is empty
• Added code to allow restricting the number of characters displayed by MRU menu items

Update UI:

• Added support for blocking accelerators for disabled items
• Improved search code assuming there are no duplicate entries (and added checks for duplicates)

CSplitterWindow:

• CSplitterWindowImpl should derive from CSplitterImpl<T , t_bVertical> to allow overriding of methods
• Added single pane mode and SetSinglePaneMode/GetSinglePaneMode
• Added right/bottom aligned resize mode using extended styles SPLIT_RIGHTALIGNED/SPLIT_BOTTOMALIGNED

atlcrack.h: Added handlers for following new messages:
    WM_APPCOMMAND
    WM_NCXBUTTONDOWN
    WM_NCXBUTTONUP
    WM_NCXBUTTONDBLCLK
    WM_XBUTTONDOWN
    WM_XBUTTONUP
    WM_XBUTTONDBLCLK

Win64:

• Dialog return value should use DWLP_MSGRESULT and SetWindowLongPtr
• CMenu::InsertMenu, AppendMenu, ModifyMenu should have UINT_PTR for the menu ID
• Added appropriate type casts
• CFrameWindowImpl::m_szAutoName - changed the size to fit the pointer value size
• CListViewCtrl::SortItems should use LPARAM for user data instead of DWORD

Misc:

• Added optional mask argument to all methods for setting extended styles
• CMDIWindow::MDIRestore - fixed to send WM_MDIRESTORE instead of WM_MDIICONARRANGE
• CListViewCtrl: Added SortItemsEx method
• CToolBarCtrl::GetButtonInfo - fixed to return int instead of BOOL
• Added CToolBarCtrl::SetButtonSize and SetBitmapSize that accept cx and cy instead of SIZE
• Printing: Changed how GetNewDevModeForPage works (comments in code)
• CFileDialogImpl::_OnTypeChange incorrectly calls pT->OnSelChange instead of pT->OnTypeChange
• CMultiPaneStatusBarCtrl::GetPaneTipText - fixed to use index instead of and ID internally
• CWinDataExchange: Added references to arguments of DoDataExchange, so there are no level 4 warning even if the map is empty
• CPropertySheetWindow: Added new, IE 5.0 specific methods
• CPropertyPageImpl: Added new, IE 5.0 specific methods

AppWizard:

• added calls to RemoveMessageFilter and RemoveIdleHandler in CMainFrame::OnDestroy for COM server projects
• added scroll bars for HTML view
• CAppServerModule now handles -embedding as well as -automation
• corrected code in CMainFrame::OnShowToolBar to correctly identify the toolbar in a rebar
• dialog based app code now derives from CUpdateUI as public

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