- #Qt sync tutorial how to#
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- #Qt sync tutorial code#
#include #include int main ( int argc, char ** argv ) Ĭompile it, and … here it is ! Our first window !
#Qt sync tutorial code#
The minimal source code of a Qt application is If you use Qt Creator's wizards, this is done automatically. SOURCES += first_file.cpp second_file.cpp Headers and sources files can be added manually with You will notice that in the project file, a new line has been added automatically by Qt Creator : Using File > New file or project > C++ > C++ Source file should do the job.įollow the wizard once again, naming the file "main", and you are done. Let's now add the entry point of our application. Since our first app is a small GUI, we will need QtCore and QtGui.
QT is used to indicate what libraries (Qt modules) are being used in this project. TARGET is the name of the app or the library. It can be an application, a library, or simply subdirectories. GreaterThan(QT_MAJOR_VERSION, 4): QT += widgets In a project file, there is some minimal code that should always be written : But, we shouldn't bother too much about qmake, since Qt Creator will do the job for us. Qt uses a command line tool that parses these project files in order to generate "makefiles", files that are used by compilers to build an application. It will be an empty project, so we have to proceed with:įile > New file or project > Other Projects > Empty Qt Projectįollow the wizard, and after selecting the project folder and name, and select the version of Qt to use, you should land on this page Let's start by creating our first project. It's also one of the fastest IDE's available. It provides a doc browser and the "designer", which makes creation of windows easier, all wrapped in a well-designed user interface. Qt Creator is yet another IDE for C++, but it is very well suited for coding Qt applications. And it will be as usual, a hello world.īefore writing our first GUI app, let's discover Qt Creator. We are now ready to create our first window. Note: See the official Getting Started with Qt Widgets page for an alternative tutorial. #Qt sync tutorial install#
Qt Creator should be available in nearly all distributions, and installing it should install all dependencies, like libraries, compilers, and developement headers. NB : On linux, it is better to use the packages that your distribution provides. You can select other packages if you want to develop for Symbian / Maemo / Meego, or with older version of Qt.
Qt 4.8.1 (Destkop), assuming that Qt 4.8.1 is the latest version. You might choose not to install them by selecting "custom install". This SDK includes a lot of features, like cross compilers for Symbian and the Nokia N9. They can be built from source, or better, be downloaded as an SDK from the download page. To start writing Qt applications, you have to get Qt libraries, and, if you want, an IDE. QtXmlPatterns, support for XSLT, XPath, XQuery and Schema validation. QtXML, support for simple XML parsing (SAX) and DOM. #Qt sync tutorial full#
QtSQL, a full featured SQL RDBM abstraction layer extensible with own drivers, support for ODBC, SQLITE, MySQL and PostgreSQL is available out of the box.
QtWebkit, the webkit engine, that enable the use of web pages and web apps in a Qt application. QtNetwork, that provides a useful set of classes to deal with network communications. QtGui and QtWidgets, a GUI toolkit for Desktop, that provides a lot of graphical components to design applications. QtCore, a base library that provides containers, thread management, event management, and much more. Qt has an impressive collection of modules, including #Qt sync tutorial for android#
Ports for Android (Necessitas) and iOS are also in development. It runs on the three major desktop OSes, as well as on mobile OSes, such as Symbian, Nokia Belle, Meego Harmattan, MeeGo or BB10, and on embedded devices. Qt (pronounced as "cute", not "cu-tee") is a cross-platform framework that is usually used as a graphical toolkit, although it is also very helpful in creating CLI applications. Want to learn more? Check out our C++ GUI Classes for Qt 5 and C++ GUI Classes for Qt 6.
#Qt sync tutorial how to#
New to Qt? Don't know how to start? Then this wiki page is for you! It is a step by step tutorial that presents all specificities and features of Qt. Type MyObject :: myFunction ( Type1 param1, Type2 * param2, const Type3 & param3 ) It contains the returned type, the name of the method/function (including the class name) and the parameters, including types. It completely describes a method or function. The signature of a method or function is simply its prototype.
27 Important sections of the documentation. 25 Qt for beginners - Finding information in the documentation. 17 Transmitting information with signals and slots.
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