Qt 3.3 introduces many new features as well as many improvements over

the 3.2.x series. For more details, see the online documentation which

is included in this distribution. The documentation is also available

at http://qt.nokia.com/doc/

The Qt version 3.3 series is binary compatible with the 3.2.x series.

Applications compiled for 3.2 will continue to run with 3.3.

****************************************************************************

*			    General					   *

****************************************************************************

Qt library

----------

Qt 3.3 is .NET enabled. This release shows how to use classes

developed with Qt in a .NET environment. It includes an analysis of

the different interoperability infrastructures provided by the .NET

framework. An example demonstrates how to use both a manual approach

with Microsoft's managed extensions to the C++ language, and also

automated solutions based on COM and the ActiveQt framework to reuse

native Qt classes and widgets in .NET projects. To learn more about Qt

and .NET read the "Using Qt objects in Microsoft .NET" walkthrough

found in the ActiveQt framework documentation.

Qt 3.3 now supports IPv6 in addition to IPv4. New functions have been

added for IPv6 support to QSocketDevice, QHostAddress and QDNns.

Qt now includes a new tool class called QLocale. This class converts

between numbers and their string representations in various languages.

QLocale supports the concept of a default locale which allows a locale

to be set globally for the entire application.

Support for new 64bit platforms and compilers has been added for Qt

3.3.  Qt now supports Itanium on both Linux (Intel C++ compiler) and

Windows (MSVC and Intel C++ Compiler). Qt 3.3 now also officially

supports FreeBSD.

Qt 3.3 also supports precompiled headers for Windows, Mac OS X and

X11. To use precompiled headers when compiling your Qt application

simply add PRECOMPILED_HEADER and then specify the header file to 

precompile in your .pro file. To learn more about precompiled headers

see the "Using Precompiled Headers" chapter in the qmake User Guide.

Two new database drivers have been added to the SQL module, InterBase

and SQLite. This makes it possible to write database applications that

do not require a database server. SQLite is provided in the Qt 3.3

distribution and can be enabled with either -qt-sql-sqlite or

-plugin-sql-sqlite. The InterBase plugin also works with Firebird, the

open source version of InterBase.

QWidget has a new function setWindowState() which is used to make a

widget maximized, minimized, etc. This allows individual settings for

the minimized/maximized/fullscreen properties.

Support for semi-transparent top-level widgets on Mac OS X and Windows

2000/XP has also been added.

A new example, qregexptester, has been added that makes it easy to

test QRegExps on sample strings.

Qt 3.3 includes in addition to this, numerous bug fixes and

improvements. Special thanks goes to KDE for their reports and

suggestions.

Qt/Embedded

-----------

Added support for SNAP graphics drivers from SciTech Software. This

gives access to accelerated drivers for more than 150 graphics

chipsets.

Qt/Mac

------

QAccessible support has been introduced (implemented in terms of Apple's

Universal Access API).

Added support for Xcode project files in qmake.

Added Tablet support for Mac OS X.

Numerous visual improvements.

Qt/X11

------

Added support for Xft2 client side fonts on X servers without the

RENDER extension.

Added a new configure option (-dlopen-opengl) which will remove the

OpenGL and Xmu library dependencies in the Qt library. The functions

used by Qt in those libraries are resolved manually using dlopen()

when this option is used.

Improved support for the Extended Window Manager Hints.

Qt/Windows

----------

Added support for Windows Server 2003 (Win64/Itanium).

Qt Motif Extension

------------------

Clipboard operations now work between Qt and Motif widgets in the same

application. Click-to-focus works with Motif widgets that are children

of a QMotifWidget.

ActiveQt Extension

------------------

Two new functions, QAxFactory::startServer() and

QAxFactory::stopServer(), can be used to start and stop an

out-of-process ActiveQt server at runtime. The new functions

QAxFactory::serverDirPath() and QAxFactory::serverFilePath() return

the location of the COM server binary. Server binaries no longer

need to implement a main() entry point function. A default

implementation is used for out-of-process servers. IClassFactory2

is supported for the development of licensed components, and

QAxFactory supports the creation of non-visual COM objects. Class

specific information can be provided directly in the C++ class

declaration using the Q_CLASSINFO macro to control how objects and

controls are registered and exposed. New helper classes and macros

are avialable to make it even easier to expose object classes (see the

QAxServer documentation for details).

COM objects developed with ActiveQt are now supported in a wider range

of clients, including Microsoft Office applications and .NET. Examples

that demonstrate how to use the Qt objects from the examples in .NET

languages like C# are included. QStringList is supported as a type,

and QRect, QSize and QPoint are now supported datatypes for control

properties and as reference parameters. Saving the controls to a

storage or stream now includes the version number of the QDataStream

used for the serialization (note that this might break existing

storages).

The QAxContainer library is now static even for shared configurations

of Qt. This simplifies deployment and allows using both QAxServer and

QAxContainer in one project, i.e. an OLE automatable application that

uses COM objects itself. The semantics of QAxBase::setControl() have

been extended to allow creating of COM objects on remote machines via

DCOM, to create controls requiring a license key and to connect to

already running objects. The implementation of QAxBase::dynamicCall()

has been improved to support passing of parameter values directly in

the function string. Three new classes, QAxScript, QAxScriptManager

and QAxScriptEngine, can be used to script COM objects from within Qt

applications using Windows Script Host.

SAFEARRAY(BSTR) parameters are supported as QStringList. Calling COM

object methods with out-parameters of type short, char and float is 

now supported (the parameters are of type int& and double& in the Qt 

wrapper), and QVariants used for out-parameters don't have to be 

initialized to the expected type. Calling QByteArray functions in 

out-of-process controls no longer returns an error code. The control's 

client side is set to zero when the container releases the control.

Qt Designer

-----------

Qt Designer, Qt's visual GUI builder, has received some speed

optimizations, along with minor improvements to the menu editor.

Qt Assistant

------------

Qt Assistant now saves the states of the tab bars between runs. This

enables users to start browsing where they ended their previous

assistant session.

Shortcuts for Find Next (F3) and Find Previous (Shift+F3) have been

implemented.

Compilers

---------

Qt 3.3 adds support for two new compilers. The Intel C++ compiler is

supported on Windows, Linux and FreeBSD. GNU gcc is supported on

Windows using MinGW.

Qt 3.3 no longer officially supports the Sun WorkShop 5.0 compiler or the

SGI MIPSpro o32 mode.

****************************************************************************

*			   Library					   *

****************************************************************************

- QAction

	Added a setDisabled() slot similar to QWidget::setDisabled.

	Added an activate() slot which activates the action and

	executes all connected slots.

	QActions::menuText() escapes ampersand characters ('&') when

	using the value of the text property.

- QButtonGroup

	Added QButtonGroup::selectedId property to allow mapping with

	SQL property sets.

- QCursor

	Added new enum value Qt::BusyCursor.

	X11 only: Added QCursor constructor taking a X11 cursor handle.

- QDom

	The QDom classes are now reentrant.

- QEvent

	Added new event type WindowStateChange, obsoleting ShowNormal,

	ShowMinimized, ShowMaximized and ShowFullScreen.

- QHeader

	The sizeChange() signal is emitted when the section sizes are

	adjusted by double clicking.

- QHostAddress

	Added new constructor for IPv6 and new functions

	isIPv6Address() and toIPv6Address(). Obsoleted the functions

	isIp4Addr() and ip4Addr(), replacing them with isIPv4Address()

	and toIPv4Address().

- QIconView

	Improved keyboard search to behave like QListView.

- QListView

	Improved alignment for text in QListViewItems. Right aligned

	text now has the ellipsis on the left.

	Keyboard search now uses the sort column as the column to

	start searching in.

	Improved branch drawing.

- QLocale [new]

	This new tool class converts between numbers and their string

	representations in various languages.

- QMacStyle

	Allow disabling of size constraints.

- QMovie

	Added JNG support.

- QPixmap

	Support full alpha-maps for paletted (8-bit) images.

	Support 16-bit grayscale PNG images with transparency.

- QPushButton

	A push button with both an iconset and text left-aligns the

	text.

- QSocketDevice

	Added setProtocol() and protocol() for IPv6 support.

- QSound

	Windows: Support loop related APIs.

- QSplashScreen

	Less intrusive stay-on-top policy.

- QSql

	Support for InterBase and SQLite.

- QStatusBar

	Draw messages with the foreground() color of the palette,

	rather than with the text() color.

- QString

	Added support for %lc and %ls to sprintf(). %lc takes a

	Unicode character of type ushort, %ls takes a zero-terminated

	array of Unicode characters of type ushort (i.e. const

	ushort*). Also added support for precision (e.g. "%.5s").

	Changed arg() to support "%L1" for localized conversions.

	Windows only: QString::local8Bit() now returns an empty

	QCString when called on a null QString to unify behavior

	with the other platforms.

- QStyle

	Add a new primitive element: PE_RubberBand.

	Added PM_MenuBarItemSpacing and PM_ToolBarItemSpacing pixel metrics.

- QTextDrag

	decode() now autodetects the encoding of text/html content.

- QTextEdit

	Reduced memory consumption by 20 bytes per line.

	Added a getter for the currently set QSyntaxHighlighter.

- QTextBrowser

	Qt now automatically detects the charset of HTML files set

	with setSource().

- QVariant

	Comparison between variants where one of the variants is a

	numeric value will compare on the numeric value. Type casting

	between different variants is more consistent.

- QWidget

	Added setWindowOpacity() and windowOpacity() to support

	transparent top-level widgets on Windows and Mac.

	Added windowState() and setWindowState() to allow individual

	setting of the minimized/maximized/fullscreen properties.

- QWindowsStyle

	Qt supports toggling of the accelerator underlines using the

	Alt-key on Windows 98, 2000 and later. On other platforms this

	change has no effect.