QLibraryInfo Class

The QLibraryInfo class provides information about the Qt library. More...

Header:	#include <QLibraryInfo>
qmake:	QT += core

Public Types

enum	LibraryLocation { PrefixPath, DocumentationPath, HeadersPath, LibrariesPath, LibraryExecutablesPath, …, SettingsPath }

Static Public Members

bool	isDebugBuild()
QString	___location(QLibraryInfo::LibraryLocation loc)
QVersionNumber	version()

Detailed Description

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 Using qt.conf documentation.

See also QSysInfo and Using qt.conf.

Member Type Documentation

enum QLibraryInfo::LibraryLocation

This enum type is used to specify a specific ___location specifier:

Constant	Value	Description
`QLibraryInfo::PrefixPath`	`0`	The default prefix for all paths.
`QLibraryInfo::DocumentationPath`	`1`	The ___location for documentation upon install.
`QLibraryInfo::HeadersPath`	`2`	The ___location for all headers.
`QLibraryInfo::LibrariesPath`	`3`	The ___location of installed libraries.
`QLibraryInfo::LibraryExecutablesPath`	`4`	The ___location of installed executables required by libraries at runtime.
`QLibraryInfo::BinariesPath`	`5`	The ___location of installed Qt binaries (tools and applications).
`QLibraryInfo::PluginsPath`	`6`	The ___location of installed Qt plugins.
`QLibraryInfo::ImportsPath`	`7`	The ___location of installed QML extensions to import (QML 1.x).
`QLibraryInfo::Qml2ImportsPath`	`8`	The ___location of installed QML extensions to import (QML 2.x).
`QLibraryInfo::ArchDataPath`	`9`	The ___location of general architecture-dependent Qt data.
`QLibraryInfo::DataPath`	`10`	The ___location of general architecture-independent Qt data.
`QLibraryInfo::TranslationsPath`	`11`	The ___location of translation information for Qt strings.
`QLibraryInfo::ExamplesPath`	`12`	The ___location for examples upon install.
`QLibraryInfo::TestsPath`	`13`	The ___location of installed Qt testcases.
`QLibraryInfo::SettingsPath`	`100`	The ___location for Qt settings. Not applicable on Windows.

See also ___location().

Member Function Documentation

`[static]` bool QLibraryInfo::isDebugBuild()

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

This function was introduced in Qt 5.0.

`[static]` QString QLibraryInfo::___location(QLibraryInfo::LibraryLocation loc)

Returns the ___location specified by loc.

`[static]` QVersionNumber QLibraryInfo::version()

Returns the version of the Qt library.

This function was introduced in Qt 5.8.

See also qVersion().

© 2024 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.