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 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.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.
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