This is Qt version %VERSION%.

Qt is a comprehensive cross-platform C++ application framework. Qt 4

introduces new features and many improvements over the 3.x series. See

http://qt.nokia.com/doc/latest/qt4-intro.html for details.

The Qt 4.x series is not binary compatible or source compatible with

the 3.x series. For more information on porting from Qt 3 to Qt 4, see

http://qt.nokia.com/doc/latest/porting4.html.

INSTALLING Qt

If you have a source package (a .tar.gz, or .zip file), follow the

instructions in the INSTALL file.

On Windows and Mac OS X, if you want to install the precompiled binary

packages, simply launch the package and follow the instructions in the

installation wizard.

For Mac OS X Carbon, the binary package requires Mac OS X 10.4 (Tiger) or

later and GCC 4.0.1 to develop applications. Its applications will run

on Mac OS X 10.4 and above.

For Mac OS X Cocoa, the binary package requires Mac OS X 10.5 (Leopard) or

later and GCC 4.0.1 to develop applications.  Its applications will run

on Mac OS X 10.5 and above.

If you want to install the precompiled binary package for Symbian,

follow these instructions:

http://qt.nokia.com/doc/%SHORTVERSION%/install-symbian-installer.html

DEMOS AND EXAMPLES

Once Qt is installed, we suggest that you take a look at the demos and

examples to see Qt in action.

For desktop computers, run the Qt Examples and Demos either by

typing 'qtdemo' on the command line or through the desktop's Start

menu. On Mac OS X, you can find it in /Developers/Applications/Qt.

For embedded devices, launch the Qt 'fluidlauncher' demo, either through 

the platforms filebrowser or the built in menu system.

REFERENCE DOCUMENTATION

The Qt reference documentation is available locally in Qt's doc/html

directory. You can use Qt Assistant to view it; to launch Assistant,

type 'assistant' on the command line or use the Start menu. On Mac OS

X, you can find it in /Developer/Applications/Qt.  The latest

documentation is available at http://qt.nokia.com/doc/.

SUPPORTED PLATFORMS

For a complete list of supported platforms, see

http://qt.nokia.com/doc/%SHORTVERSION%/supported-platforms.html.

COMMERCIAL EDITIONS

Desktop Edition licensees can use all the modules provided with their

Qt package.

GUI Framework licensees may only use the classes contained in

the QtCore, QtGui (except QGraphicsView), QtTest, QtDBus and

Qt3Support modules.

For a full listing of the contents of each module, please refer to 

http://qt.nokia.com/doc/%SHORTVERSION%/modules.html

HOW TO REPORT A BUG

If you think you have found a bug in Qt, we would like to hear about

it so that we can fix it.  The Qt bug tracking system is open to the

public at http://bugreports.qt.nokia.com/.

Before reporting a bug, please use the bug-tracker's search functions

and consult http://qt.nokia.com/developer/faqs/ to see if the issue is

already known.

Always include the following information in your bug report: the name

and version number of your compiler; the name and version number of

your operating system; the version of Qt you are using, and what

configure options it was compiled with.

If the problem you are reporting is only visible at run-time, try to

create a small test program that shows the problem when run. Often,

such a program can be created with some minor changes to one of the many

example programs in Qt's examples directory, or to the autotests that

are available in the public source repository on http://qt.gitorious.org/.

Qt is a trademark of Nokia Corporation and/or its subsidiary(-ies).