\inmodule QtCore More...

#include <qlibraryinfo.h>

Collaboration diagram for QLibraryInfo:

Public Types
enum	LibraryPath { PrefixPath = 0 , DocumentationPath , HeadersPath , LibrariesPath , LibraryExecutablesPath , BinariesPath , PluginsPath , QmlImportsPath , Qml2ImportsPath = QmlImportsPath , ArchDataPath , DataPath , TranslationsPath , ExamplesPath , TestsPath , SettingsPath = 100 }
	\keyword library location More...

Static Public Member Functions
static const char *	build () noexcept
	Returns a string describing how this version of Qt was built.

static bool	isDebugBuild () noexcept Q_DECL_CONST_FUNCTION

static bool	isSharedBuild () noexcept Q_DECL_CONST_FUNCTION

static QVersionNumber	version () noexcept Q_DECL_CONST_FUNCTION

static QString	path (LibraryPath p)

static QStringList	platformPluginArguments (const QString &platformName)
	Returns additional arguments to the platform plugin matching platformName which can be specified as a string list using the key `Arguments` in a group called `Platforms` of the `qt.conf` file.

Detailed Description

\inmodule QtCore

The QLibraryInfo class provides information about the Qt library.

Many pieces of information are established when Qt is configured and built. This class provides an abstraction for accessing that information. By using the static functions of this class, an application can obtain information about the instance of the Qt library which the application is using at run-time.

You can also use a qt.conf file to override the hard-coded paths that are compiled into the Qt library. For more information, see the \l {Using qt.conf} documentation.

See also: QSysInfo, {Using qt.conf}

Definition at line 13 of file qlibraryinfo.h.

Member Enumeration Documentation

◆ LibraryPath

enum QLibraryInfo::LibraryPath

\keyword library location

This enum type is used to query for a specific path:

\value PrefixPath The default prefix for all paths. \value DocumentationPath The path to documentation upon install. \value HeadersPath The path to all headers. \value LibrariesPath The path to installed libraries. \value LibraryExecutablesPath The path to installed executables required by libraries at runtime. \value BinariesPath The path to installed Qt binaries (tools and applications). \value PluginsPath The path to installed Qt plugins. \value QmlImportsPath The path to installed QML extensions to import. \value Qml2ImportsPath This value is deprecated. Use QmlImportsPath instead. \value ArchDataPath The path to general architecture-dependent Qt data. \value DataPath The path to general architecture-independent Qt data. \value TranslationsPath The path to translation information for Qt strings. \value ExamplesPath The path to examples upon install. \value TestsPath The path to installed Qt testcases. \value SettingsPath The path to Qt settings. Not applicable on Windows.

See also: path()

Enumerator
PrefixPath
DocumentationPath
HeadersPath
LibrariesPath
LibraryExecutablesPath
BinariesPath
PluginsPath
QmlImportsPath
Qml2ImportsPath
ArchDataPath
DataPath
TranslationsPath
ExamplesPath
TestsPath
SettingsPath

Definition at line 25 of file qlibraryinfo.h.

Member Function Documentation

◆ build()

const char * QLibraryInfo::build ( )

staticnoexcept

Returns a string describing how this version of Qt was built.

Since: 5.3

Definition at line 225 of file qlibraryinfo.cpp.

References qt_build_string().

Referenced by QJUnitTestLogger::startLogging(), QPlainTestLogger::startLogging(), and QXmlTestLogger::startLogging().

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◆ isDebugBuild()

bool QLibraryInfo::isDebugBuild ( )

staticnoexcept

Since: 5.0 Returns true if this build of Qt was built with debugging enabled, or false if it was built in release mode.

Definition at line 236 of file qlibraryinfo.cpp.

Referenced by QWindowsContext::classNamePrefix(), QQuickWidgetPrivate::handleContextCreationFailure(), QSGRenderLoop::handleContextCreationFailure(), init_platform(), and QWindowsWindow::setGeometry().

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◆ isSharedBuild()

bool QLibraryInfo::isSharedBuild ( )

staticnoexcept

Since: 6.5 Returns true if this is a shared (dynamic) build of Qt.

Definition at line 249 of file qlibraryinfo.cpp.

◆ path()

QString QLibraryInfo::path ( LibraryPath p )

static

Since: 6.0 Returns the path specified by p.

Definition at line 520 of file qlibraryinfo.cpp.

References QLibraryInfoPrivate::path().

Referenced by QQmlImportDatabase::QQmlImportDatabase(), QQmlPreviewFileLoader::QQmlPreviewFileLoader(), contextFactory(), QQmlJSLinter::defaultPluginPath(), deployQmlImports(), deployQtFrameworks(), deployQtFrameworks(), QPlatformFontDatabase::fontDir(), QQmlApplicationEnginePrivate::init(), initDefaultPaths(), QLoggingRegistry::initializeRules(), main(), QTest::qFindTestData(), resolveBugListFile(), and ProxyTranslator::setLanguage().

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◆ platformPluginArguments()

QStringList QLibraryInfo::platformPluginArguments ( const QString & platformName )

static

Returns additional arguments to the platform plugin matching platformName which can be specified as a string list using the key Arguments in a group called Platforms of the qt.conf file.

sa {Using qt.conf}