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Qt 4 Beta 1 Available for Download
scc writes "Get it here. Trolltech's press release gives the details, including the projected release date: late first quarter 2005. Qt is the cross-platform GUI framework at the heart of KDE. At the same time, Trolltech released under the GPL Qtopia 2.1, an implementation of their GUI framework for Linux-based PDAs."
Qt designer and assistent apparently can be embedded into kdeveloper, visual studio etc.
Other improvements include
a new paint engine
a new text rendering engine
new containers (which are lighter than the STL ones)
better support for multithreading
a new docking architecture
and last but not least better performance and smaller memory footprint.
Please login to access my lawn
http://kde-cygwin.sourceforge.net/qt3-win32/
The article at KDE.news
The roots of education are bitter, but the fruit is sweet.
--Aristotle
Sorry, SCO owns a chunk of Trolltech ...
l
http://www.trolltech.com/newsroom/investors.htm
And Canopy (who owns SCO) has a seat on the board of Directors currently occupied by Ralph Yarro (Darl Macbride's boss).
An update of the book for Qt 4 is in work according to the documentation pages, let's hope it again includes a non-commercial version.
QT is released under the GPL on Linux and OS X. People claim it isn't free because use to it was ONLY under the QPL, but now you can use it under either license for non-commercial use. If you want to make money off of it do the honest thing and pay them for using their product, and you will be able to license it under any license you wish.
Actually there is a version of the GPL QT ported to Win32. In fact its been out for quite a while.
l e-mingw.php
The Windows version of the ultra excellent lyx editor used it for their windows port in fact. See: http://www.home.zonnet.nl/rareitsma/lyx/
Here is the home for the Win32 port of the GPL QT:
http://kde-cygwin.sourceforge.net/qt3-win32/compi
Its part of the cygwin project, BUT they have instructions for doing a native compile with other native Windows compilers such as Borland, Microsoft C++ etc..
-- Given enough time and money, Microsoft will eventualy invent UNIX.
more powerful classes than WxWindows does (containers, database connection, etc.)
Are you using wxWidgets 1.0 or something? wxWidgets has had container and database classes for some time now.
You may want to look through the manual sometime. Scroll down.
Pulled this from the newsgroups...and it covers most diffenences between GTk and QT:::
- Qt is C++ based but it uses C++ in its own way because of its cross-platform
nature (through a special preprocessor)
- GTK is C based but it uses its own "object oriented" approach.
- Qt can rely on QtDesigner and KDevelop that, together, make up a real IDE
(similar to Visual Studio)
- GTK must rely on Glade only, that is a GUI builder equivalent to QtDesigner.
There is nothing like KDevelop for GTK (AFAIK).
- Qt runs (with recompilation) on Linux/Unix, MacOS X and Windows (all
versions)
- GTK runs on Linux. There is a porting of the old GTK1.2 for Windows. A
Porting for Mac OS X is under development (AFAIK)
- Qt has internal support for scripting (QAS)
- Should you need to add scripting capabilities to a GTK application, you have
to embed your own engine (Python, LUA...)
- Qt has integrated data-aware widget for data-centric applications.
- GTK has a separate project (gnome-db) for data-aware widgtes
- Qt-based applications and the KDE desktop "talks" each other via DCOP
- GTK applications and Gnome "talks" each other via CORBA
- Qt has exhaustive bindings for Python and a few other language (maybe Perl
and Scheme)
- GTK has exhaustive bindings for C++ (GTKmm), Python (PyGTK) and Ruby. There
are less complete bindings for Perl, Scheme, Lua and so on. Have a look at
www.gtk.org for a complete listing of the available bindings and their
development status.
- Qt has exhaustive documentation and a lot of examples form Trolltech and the
KDE team
- GTK has exhaustive documentation and a lot of examples from GTK team
- Qt is freeware on Linux only
- GTK is always freeware (but it is not completely available on Windows and
MacOS X)
Should you need to develop x-platform applications, have a look at wxWindows
(and wxPython) as well. The Linux implementation of wxWindows relies on GTK+
but wxWindows can run on Windows (all versions) as well, thanks to MFC, and
on MacOS (all versions), thanks to a specific GUI engine.
OpenGL and double buffering are mutually exclusive.
Uhm... Then how come I've been using these functions? They must be figments of my imagination! When I compile my source the code fairies must have magically removed them! It's the only viable explanation.
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER,1);
SDL_GL_SwapBuffers();
I am a viral sig. Please help me spread.
I have tried both of those, but for ease of development I've found something which beats both is Qt/Python. Give it a try if you haven't - it's actually easier than Qt/C++ because you don't have to worry about moc and declaring slots.
I am trolling
its supposed to be 20% faster overall. Ignore the trolls.
it has no (direct) cost and distributed apps are royalty free.
i dont think that it is available for download, but it is included in with the book "c++ gui programming with qt3"
http://www.amazon.com/exec/obidos/tg/detail/-/0131 240722/qid=1103913660/sr=8-1/ref=sr_8_xs_ap_i1_xgl 14/002-4430584-6064036?v=glance&s=books&n=507846
amazon
--- blackironprison, where ignorance is bliss....