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Programming with Qt: Writing Portable GUI applications on Unix and Win32 (Classique Us) [Englisch] [Taschenbuch]

Matthias Kalle Dalheimer
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Kurzbeschreibung

4. Februar 2002 Classique Us
The popular open source KDE desktop environment for Unix was built with Qt, a C++ class library for writing GUI applications that run on Unix, Linux, Windows 95/98, Windows 2000, and Windows NT platforms. Qt emulates the look and feel of Motif, but is much easier to use. Best of all, after you have written an application with Qt, all you have to do is recompile it to have a version that works on Windows. Qt also emulates the look and feel of Windows, so your users get native-looking interfaces.Platform independence is not the only benefit. Qt is flexible and highly optimized. You'll find that you need to write very little, if any, platform-dependent code because Qt already has what you need. And Qt is free for open source and Linux development.Although programming with Qt is straightforward and feels natural once you get the hang of it, the learning curve can be steep. Qt comes with excellent reference documentation, but beginners often find the included tutorial is not enough to really get started with Qt. That's whereProgramming with Qt steps in. You'll learn how to program in Qt as the book guides you through the steps of writing a simple paint application. Exercises with fully worked out answers help you deepen your understanding of the topics. The book presents all of the GUI elements in Qt, along with advice about when and how to use them, so you can make full use of the toolkit. For seasoned Qt programmers, there's also lots of information on advanced 2D transformations, drag-and-drop, writing custom image file filters, networking with the new Qt Network Extension, XML processing, Unicode handling, and more.Programming with Qt helps you get the most out of this powerful, easy-to-use, cross-platform toolkit. It's been completely updated for Qt Version 3.0 and includes entirely new information on rich text, Unicode/double byte characters, internationalization, and network programming.

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Produktinformation

  • Taschenbuch: 520 Seiten
  • Verlag: O'Reilly & Associates; Auflage: 2 (4. Februar 2002)
  • Sprache: Englisch
  • ISBN-10: 0596000642
  • ISBN-13: 978-0596000646
  • Größe und/oder Gewicht: 17,8 x 23,1 x 2,8 cm
  • Durchschnittliche Kundenbewertung: 2.0 von 5 Sternen  Alle Rezensionen anzeigen (2 Kundenrezensionen)
  • Amazon Bestseller-Rang: Nr. 284.191 in Fremdsprachige Bücher (Siehe Top 100 in Fremdsprachige Bücher)
  • Komplettes Inhaltsverzeichnis ansehen

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Produktbeschreibungen

Amazon.de

For anyone programming Qt, Programming with Qt, Second Edition provides an excellent one-volume tutorial and reference to virtually all the features and APIs available in the powerful Qt C++ GUI cross-platform library. Whether you are just starting out with Qt, or want to catch up on new and advanced features, this title offers an invaluable resource for readers.

The no-nonsense approach and right-on-target examples help distinguish this text. The book begins by making a case for cross-platform development. (Qt shows that Java is not the only game in town in this regard.) A later section on good GUI design and some hints for better portability help make this title a good way to learn GUI programming from the ground up.

Short, clear examples show off the basics, starting with a "Hello World" application. Emphasis is on using the Qt APIs effectively rather than getting bogged down in C++ syntax. Since GUI programming is a strength, the author covers the built-in "widgets" available in Qt in excellent detail, including fancier controls like tables and new dial components. The Qt library is also a general-purpose application framework, and there's coverage here for file APIs, collections, and late-breaking support for XML processing.

The basics are augmented here with short sections showing particular APIs at work. Most readers will likely find the material on Qt's SQL Module for database programming indispensable. A section on custom controls is also a standout and more advanced readers will learn how to using OpenGL calls in Qt as well as how to interoperate with Perl modules.

The book closes with sections that will benefit the less experienced Qt developer, including how to use Visual C++ 6 to let you build Qt executables, and how to take advantage of Qt's Designer tool to simplify designing forms and components visually.

Right up to date with the latest on Qt from top to bottom, this text really shines with its notably concise and authoritative style that readers will have come to expect from O'Reilly titles. For anyone tackling Qt development, the second edition of Programming Qt is sure to be a necessary addition to your programming bookshelf. --Richard Dragan

Pressestimmen

"This is a very well-written book, and a worthwhile read for all but the most advanced Qt programmers. It requires knowledge of C++, but QT concepts are brought up from a basic level and are easy to get to grips with." Verdict: Considering the freely available reference material this is probably the only Qt book you will ever need to buy. 9/10 Linux Format, August 2002

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8 von 8 Kunden fanden die folgende Rezension hilfreich
3.0 von 5 Sternen Gut zu lesen, reicht aber als Einstieg nicht aus 29. Februar 2004
Format:Taschenbuch
Das Buch liest sich recht gut, aber es ist mir nicht gelungen, mit diesem Buch als Hauptquelle eigene Programme zu schreiben. Ich denke, es gibt einfach viel zu wenig lauffähige Beispiele, die abgedruckt und erklärt werden. So fällt ein wirklicher Einstieg doch recht schwer. Irgendwelche Feinheiten für Grafikerzeugung bringen mir nichts, wenn nicht das Grundprinzip anhand eines lauffähigen Beispiels erklärt wird. Einige Listings sind hingegen sehr lang, aber bauen dann schon auf vorhandenem Grundwissen auf.
Das Buch ist als Ergänzung zur Referenz gedacht, aber wirklich grundlegende Infos musste ich mir meist über das Internet zusammensuchen. Und deshalb kann ich das Buch nicht uneingeschränkt empfehlen. Ich werde jetzt einmal andere Bücher ausprobieren.
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23 von 28 Kunden fanden die folgende Rezension hilfreich
1.0 von 5 Sternen Only usefull for beginners ! 26. Oktober 2002
Von Ein Kunde
Format:Taschenbuch
Actually there is only one positive thing to mention about this book, it is very easy to read. Althought it seems that the author has copied most things out of the reference manual from QT. The examples are mostly not full running, they do not differ too much from the example qt doc sources, and cannot be run completely without extra source code.
So whom does this book address to ?
Well, this book is definitly not recommendable to users that do not have the slightest idea about C++ . Advanced users should stick to the QT documentation,because it answers at least more questions than the book.
Perhaps beginners in QT and with a knowledge in C++ could use the book as soft entry into the QT-Doc Manual.
Better save your money ;)
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Amazon.com: 3.7 von 5 Sternen  19 Rezensionen
22 von 22 Kunden fanden die folgende Rezension hilfreich
5.0 von 5 Sternen excellent book for learning Qt 13. August 2002
Von pidloop - Veröffentlicht auf Amazon.com
Format:Taschenbuch
I hesitated to buy this after reading the negative reviews here. I am glad I did. It is exactly what I needed. It touches on the necessary basics of C++, event driven programming and covers how to download and install the Qt environment in the first chapter. The second is Hello World, the next few are guided tours of the major widgets, then some 20+ more chapters cover Qt by topic because it is much more than a GUI toolkit. The style is succinct yet easy to absorb. It took me about two days to read through it carefully. In that brief time now I just use the online Qt help for detail info.
17 von 17 Kunden fanden die folgende Rezension hilfreich
5.0 von 5 Sternen Very good book 26. Oktober 2003
Von Ein Kunde - Veröffentlicht auf Amazon.com
Format:Taschenbuch
I am new to Linux programming (I'm a .Net developer) and was a bit frustrated with the online tutorials for Qt and decided to give this book a try. I am very happy with the decision, this book is very well written. I like the style of the author, giving us some practical exercises after each topic, so we can improve the application he develops throughout the book (a "paintbrush"). Now that I understood the basics I can use the Qt documentation to do my own apps.
People who like those huge, "step-by-step" ("click File->Quit to exit the application...") books might be a bit disappointed with this one though, the author assumes that the reader knows some C++ and can figure out some stuff by himself/herself, so be warned. Not that he skips any information needed, but he doesn't repeat the same thing 10x either, so you gotta be a bit "smart" to read this book.
15 von 15 Kunden fanden die folgende Rezension hilfreich
5.0 von 5 Sternen Handy Programming Help 9. August 2002
Von Oliver Ruf - Veröffentlicht auf Amazon.com
Format:Taschenbuch
I find this book is very good. It provides quick help while programming, gives a lot of ideas how to solve problems, and a quick overview how the most common problems have to be dealt with.
But - yes, there is a 'but' - it is definitively not a book about GUI programming, it's about QT! If you are familiar with GUI development, such as java/swing programming or similar, and you are also familiar with C++, this book can be a great help for development.
11 von 11 Kunden fanden die folgende Rezension hilfreich
4.0 von 5 Sternen A better version of the documentation 20. Juli 2003
Von C. McManis - Veröffentlicht auf Amazon.com
Format:Taschenbuch
One reviewer slams this book because it just rehashes the freely available help files and tutorials. That is not a fair assesment as Matthias does a good job of explaining what he is doing and how. The "free" help pages are pretty terse in this regard.
I can't give it 5 stars however because it doesn't take the time to talk about *how* to get your programs to compile in various environments (I use FreeBSD) and that can leave the reader very unsatisfied. There is enough on-line documentation to figure it out, but some pointers in this book would have really enhanced the experience.
Of course, if you aer using the KDE desktop this book is essential. This combined with the book on KDE is a good set for anyone who wants to develop applications for Linux (or FreeBSD).
9 von 9 Kunden fanden die folgende Rezension hilfreich
4.0 von 5 Sternen Good, if outdated, introduction to Qt 1. November 2005
Von Andrew Fairley - Veröffentlicht auf Amazon.com
Format:Taschenbuch|Verifizierter Kauf
Book starts out strong, and was helpful as an introduction for Qt. However, it seems to cut out about 350 pages in, putting subjects such as "Focus Handling" in its own 3 page chapter, rather than integrating it into an existing chapter. That said, the Portability chapter, which includes a list of Qt functions that are not portable, was a valuable addition.

Keep in mind, the 2nd edition of Programming for Qt was written for Qt 3. At the time of this review, the latest version of Qt is version 4. This is a problem because Trolltech appears to reinvent the wheel for each major version. While the author had me salivating at the thought of a QStyleSheet, checking the API docs for Qt 4 QStyleSheet is now a deprecated class, and as far as I can tell there is no current equivalent.

One aspect I wish the author had covered in more detail is the actual compiling and linking of applications that use Qt. I'm starting to get the impression that Trolltech's dirty little secret is that while their API is both clean and thorough, the signal/slot method is overly reliant on #defines, and the developer has to compile and link as many as twice the number of files to make it function. Trolltech includes a program 'qmake' almost as a bandaid which will generate Makefiles that will then automatically generate and compile the extra 'moc' files. The problem is that if you're porting an application to Qt, you're likely to have existing makefiles. Adding the additional layer of qmake and it's .pro files is both cumbersome and not actually necessary. While you can certainly figure out on your own how to avoid using qmake, it would have been helpful if the book described the functionality of the qmake-generated makefiles. This would help developers porting to Qt to include that functionality in their existing makefiles.
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