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Please review the following information to ensure ** the GNU Free Documentation License version 1.3 requirements ** will be met: https://www.gnu.org/licenses/fdl-1.3.html. ** $QT_END_LICENSE$ ** ****************************************************************************/ /*! \page qtwebengine-deploying.html \title Deploying Qt WebEngine Applications The way to package and deploy applications varies between operating systems. For Windows and \macos, \l{The Windows Deployment Tool}{windeployqt} and \l{Deploying Applications on macOS}{macdeployqt} automate the steps to generate a stand-alone application package. When manually deploying applications that depend on Qt WebEngine, all the files that are required to run the application have to be included: libraries, QML imports, plugins, and translations. For more information, see \l {Deploying Qt Applications}. \section1 Target Platforms Qt WebEngine does try to support all \l{Supported Platforms} of Qt. However, due to different requirements of Chromium this is not always possible. Known limitations are: \list \li Qt WebEngine currently supports only Windows, Linux, and \macos. \li On Windows, Qt WebEngine only supports Windows Vista or newer as target platform. Due to use of newer API in Chromium, Windows XP is not supported. WinRT is not supported, either. \endlist \section1 Deploying Applications Manually When manually deploying applications that depend on Qt WebEngine, the following files might have to be deployed: \list \li Libraries \li QML imports \li Qt WebEngine process \li Resources \li Translations \li Audio and video codecs \endlist \section2 Deploying Libraries The following libraries must be deployed with applications that depend on Qt WebEngine: \list \li QtWebEngineCore library \li QtWebEngineWidgets or QtWebEngine libraries, depending on application type \endlist \section2 Deploying QML Imports If Qt Quick integration is used in the application, the QtWebEngine import directory needs to be deployed. \section2 Deploying Qt WebEngine Processes Qt WebEngine takes advantage of the multi-process model that the Chromium project offers. The multi-process model requires that the Qt WebEngine Process executable be deployed alongside your application. The WebEngine process is executed for each QWebEngineView or WebEngineView instance. For example, a browser application with two tabs open should have two separate instances of the process running. This is a common approach used by most modern web engines to provide a stable browsing experience. At runtime, Qt WebEngine looks for the \c QtWebEngineProcess executable in the directory that QLibraryInfo::location(QLibraryInfo::LibraryExecutablesPath) returns. For Qt installations, this is \c QTDIR/libexec (Linux) or \c QTDIR\bin (Windows). The path can be changed by defining a \c qt.conf file, for example. Alternatively, an executable path can be set as a value of the \c QTWEBENGINEPROCESS_PATH environment variable. On \macos, Qt WebEngine looks for the executable in \c .app/Helpers/QtWebEngineProcess. \section2 Deploying Resources Qt WebEngine requires the following resource files: \list \li \c qtwebengine_resources.pak contains the resources needed by Chromium. \li \c qtwebengine_devtools_resources.pak contains tools for remote debugging. \li \c qtwebengine_resources_100p.pak contains images suitable for low resolution displays. \li \c qtwebengine_resources_200p.pak contains images suitable for high DPI displays. \li \c icudtl.dat provides support for International Components for Unicode (ICU). It is the Chromium version of ICU, which is not needed if Qt WebEngine was configured to use the system ICU. \endlist Resources are searched from the following locations: \list \li On Linux and Windows: the \c resources directory in the directory specified by QLibraryInfo::location(QLibraryInfo::DataPath) \li On \macos: \c .app/Content/Resources \endlist \section2 Translations Locale data (such as \c en-US.pak) is searched form the following locations: \list \li On \macos: \c .app/Content/Resources \li On Linux and Windows: \c qtwebengine_locales directory in the directory specified by QLibraryInfo::location(QLibraryInfo::TranslationsPath) \endlist \section2 Deploying Audio and Video Codecs To support HTML5 video, you must additionally deploy \c ffmpegsumo.dll (WebM codec plugin) into the \c qtwebengine directory under the application install path or under the path that the \c PluginsPath variable was set to in \c qt.conf. */