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    1 Qt 3.3 introduces many new features as well as many improvements over
    2 the 3.2.x series. For more details, see the online documentation which
    3 is included in this distribution. The documentation is also available
    4 at http://qt.nokia.com/doc/
    5 
    6 The Qt version 3.3 series is binary compatible with the 3.2.x series.
    7 Applications compiled for 3.2 will continue to run with 3.3.
    8 
    9 ****************************************************************************
   10 *			    General					   *
   11 ****************************************************************************
   12 
   13 Qt library
   14 ----------
   15 
   16 Qt 3.3 is .NET enabled. This release shows how to use classes
   17 developed with Qt in a .NET environment. It includes an analysis of
   18 the different interoperability infrastructures provided by the .NET
   19 framework. An example demonstrates how to use both a manual approach
   20 with Microsoft's managed extensions to the C++ language, and also
   21 automated solutions based on COM and the ActiveQt framework to reuse
   22 native Qt classes and widgets in .NET projects. To learn more about Qt
   23 and .NET read the "Using Qt objects in Microsoft .NET" walkthrough
   24 found in the ActiveQt framework documentation.
   25 
   26 Qt 3.3 now supports IPv6 in addition to IPv4. New functions have been
   27 added for IPv6 support to QSocketDevice, QHostAddress and QDNns.
   28 
   29 Qt now includes a new tool class called QLocale. This class converts
   30 between numbers and their string representations in various languages.
   31 QLocale supports the concept of a default locale which allows a locale
   32 to be set globally for the entire application.
   33 
   34 Support for new 64bit platforms and compilers has been added for Qt
   35 3.3.  Qt now supports Itanium on both Linux (Intel) and Windows
   36 (VC++). Qt 3.3 now also officially supports FreeBSD.
   37 
   38 Qt 3.3 also supports precompiled headers for both Windows and Mac OS
   39 X. To use precompiled headers when compiling your Qt application
   40 simply add PRECOMPH and then specify the header file to precompile in
   41 your .pro file. To learn more about precompiled headers see the
   42 "Using Precompiled Headers" chapter in the qmake User Guide.
   43 
   44 Two new database drivers have been added to the SQL module, InterBase
   45 and SQLite. This makes it possible to write database applications that
   46 do not require a database server. SQLite is provided in the Qt 3.3
   47 distribution and can be enabled with either -qt-sql-sqlite or
   48 -plugin-sql-sqlite. The InterBase plugin also works with Firebird, the
   49 open source version of InterBase.
   50 
   51 QWidget has a new function setWindowState() which is used to make a
   52 widget maximized, minimized, etc. This allows individual settings for
   53 the minimized/maximized/fullscreen properties.
   54 
   55 Support for semi-transparent top-level widgets on Mac OS X and Windows
   56 2000/XP has also been added.
   57 
   58 Qt 3.3 includes in addition to this, numerous bug fixes and
   59 improvements. Special thanks goes to KDE for their reports and
   60 suggestions.
   61 
   62 
   63 Qt/Embedded
   64 -----------
   65 
   66 Added support for SNAP graphics drivers from SciTech Software. This
   67 gives access to accelerated drivers for more than 150 graphics
   68 chipsets.
   69 
   70 
   71 Qt/Mac
   72 ------
   73 
   74 Added support for Xcode project files in qmake.
   75 Added Tablet support for Mac OS X.
   76 Numerous visual improvements.
   77 
   78 
   79 Qt/X11
   80 ------
   81 
   82 Added support for Xft2 client side fonts on X servers without the
   83 RENDER extension.
   84 
   85 Added a new configure option (-dlopen-opengl) which will remove the
   86 OpenGL and Xmu library dependencies in the Qt library. The functions
   87 used by Qt in those libraries are resolved manually using dlopen()
   88 when this option is used.
   89 
   90 Improved support for the Extended Window Manager Hints.
   91 
   92 
   93 Qt/Windows
   94 ----------
   95 
   96 Added support for Windows Server 2003 (Win64/Itanium).
   97 
   98 
   99 Qt Motif Extension
  100 ------------------
  101 
  102 Clipboard operations now work between Qt and Motif widgets in the same
  103 application. Click-to-focus works with Motif widgets that are children
  104 of a QMotifWidget.
  105 
  106 
  107 ActiveQt Extension
  108 ------------------
  109 
  110 Two new functions, QAxFactory::startServer() and
  111 QAxFactory::stopServer(), can be used to start and stop an
  112 out-of-process ActiveQt server at runtime. The new functions
  113 QAxFactory::serverDirPath() and QAxFactory::serverFilePath() return
  114 the location of the COM server binary. Server binaries no longer
  115 need to implement a main() entry point function. A default
  116 implementation is used for out-of-process servers. IClassFactory2
  117 is supported for the development of licensed components, and
  118 QAxFactory supports the creation of non-visual COM objects. Class
  119 specific information can be provided directly in the C++ class
  120 declaration using the Q_CLASSINFO macro to control how objects and
  121 controls are registered and exposed. New helper classes and macros
  122 are avialable to make it even easier to expose object classes (see the
  123 QAxServer documentation for details).
  124 
  125 COM objects developed with ActiveQt are now supported in a wider range
  126 of clients, including Microsoft Office applications and .NET. Examples
  127 that demonstrate how to use the Qt objects from the examples in .NET
  128 languages like C# are included. QStringList is supported as a type,
  129 and QRect, QSize and QPoint are now supported datatypes for control
  130 properties and as reference parameters. Saving the controls to a
  131 storage or stream now includes the version number of the QDataStream
  132 used for the serialization (note that this might break existing
  133 storages).
  134 
  135 The QAxContainer library is now static even for shared configurations
  136 of Qt. This simplifies deployment and allows using both QAxServer and
  137 QAxContainer in one project, i.e. an OLE automatable application that
  138 uses COM objects itself. The semantics of QAxBase::setControl() have
  139 been extended to allow creating of COM objects on remote machines via
  140 DCOM, to create controls requiring a license key and to connect to
  141 already running objects. The implementation of QAxBase::dynamicCall()
  142 has been improved to support passing of parameter values directly in
  143 the function string. Three new classes, QAxScript, QAxScriptManager
  144 and QAxScriptEngine, can be used to script COM objects from within Qt
  145 applications using Windows Script Host.
  146 
  147 SAFEARRAY(BSTR) parameters are supported as QStringList. Calling COM
  148 object methods with out-parameters of type short is now supported (the
  149 parameters are of type int& in the Qt wrapper), and QVariants used for
  150 out-parameters don't have to be initialized to the expected type.
  151 Calling QByteArray functions in out-of-process controls no longer
  152 returns an error code. The control's client side is set to zero when
  153 the container releases the control.
  154 
  155 
  156 Qt Designer
  157 -----------
  158 
  159 Qt Designer, Qt's visual GUI builder, has received some speed
  160 optimizations, along with minor improvements to the menu editor.
  161 
  162 
  163 Qt Assistant
  164 ------------
  165 
  166 Qt Assistant now saves the states of the tab bars between runs. This
  167 enables users to start browsing where they ended their previous
  168 assistant session.
  169 
  170 Shortcuts for Find Next (F3) and Find Previous (Shift+F3) have been
  171 implemented.
  172 
  173 
  174 Compilers
  175 ---------
  176 
  177 Qt 3.3 adds support for two new compilers. The Intel C++ compiler is
  178 supported on Linux and FreeBSD. GNU gcc is supported on Windows using
  179 MinGW.
  180 
  181 Qt 3.3 no longer officially supports the Sun CC 5.0 compiler or the
  182 IRIX MIPSpro o32 mode.
  183 
  184 
  185 ****************************************************************************
  186 *			   Library					   *
  187 ****************************************************************************
  188 
  189 - QAction
  190 	Added a setDisabled() slot similar to QWidget::setDisabled.
  191 	Added an activate() slot which activates the action and
  192 	executes all connected slots.
  193 	Added showStatusMessage() and whatsThisClicked() signals.
  194 
  195 - QButtonGroup
  196 	Added QButtonGroup::selectedId property to allow mapping with
  197 	SQL property sets.
  198 
  199 - QCursor
  200 	Added new enum value Qt::BusyCursor.
  201 
  202 - QDom
  203 	The QDom classes are now reentrant.
  204 
  205 - QEvent
  206 	Added new event type WindowStateChange, obsoleting ShowNormal,
  207 	ShowMinimized, ShowMaximized and ShowFullScreen.
  208 
  209 - QHeader
  210 	The sizeChange() signal is emitted when the section sizes are
  211 	adjusted by double clicking.
  212 
  213 - QHostAddress
  214 	Added new constructor for IPv6 and new functions
  215 	isIPv6Address() and toIPv6Address(). Obsoleted the functions
  216 	isIp4Addr() and ip4Addr(), replacing them with isIPv4Address()
  217 	and toIPv4Address().
  218 
  219 - QListView
  220 	Improved alignment for text in QListViewItems. Right aligned
  221 	text now has the ellipsis on the left.
  222 	Keyboard search now uses the sort column as the column to
  223 	start searching in.
  224 	Improved branch drawing.
  225 
  226 - QLocale [new]
  227 	This new tool class converts between numbers and their string
  228 	representations in various languages.
  229 
  230 - QMacStyle
  231 	Allow disabling of size constraints.
  232 
  233 - QMovie
  234 	Added JNG support.
  235 
  236 - QPixmap
  237 	Support full alpha-maps for paletted (8-bit) images.
  238 	Support 16-bit grayscale PNG images with transparency.
  239 
  240 - QSocketDevice
  241 	Added setProtocol() and protocol() for IPv6 support.
  242 
  243 - QSound
  244 	Windows: Support loop related APIs.
  245 
  246 - QSplashScreen
  247 	Less intrusive stay-on-top policy.
  248 
  249 - QSql
  250 	Support for InterBase and SQLite.
  251 
  252 - QStatusBar
  253 	Draw messages with the foreground() color of the palette,
  254 	rather than with the text() color.
  255 
  256 - QString
  257 	Added support for %lc and %ls to sprintf(). %lc takes a
  258 	Unicode character of type ushort, %ls takes a zero-terminated
  259 	array of Unicode characters of type ushort (i.e. const
  260 	ushort*). Also added support for precision (e.g. "%.5s").
  261 	Changed arg() to support "%L1" for localized conversions.
  262 
  263 - QStyle
  264 	Add a new primitive element: PE_RubberBand.
  265 
  266 - QTextEdit
  267 	Reduced memory consumption by 20 bytes per line.
  268 	Added a getter for the currently set QSyntaxHighlighter.
  269 
  270 - QVariant
  271 	Comparison between variants where one of the variants is a
  272 	numeric value will compare on the numeric value. Type casting
  273 	between different variants is more consistent.
  274 
  275 - QWidget
  276 	Added setWindowOpacity() and windowOpacity() to support
  277 	transparent top-level widgets on Windows and Mac.
  278 	Added windowState() and setWindowState() to allow individual
  279 	setting of the minimized/maximized/fullscreen properties.
  280 
  281 - QWindowsStyle
  282 	Qt supports toggling of the accelerator underlines using the
  283 	Alt-key on Windows 98, 2000 and later. On other platforms this
  284 	change has no effect.