QLibraryInfo Class

QLibraryInfo class provides information about the Qt library. 更多...

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

公共类型

enum	LibraryLocation { PrefixPath, DocumentationPath, HeadersPath, LibrariesPath, ..., SettingsPath }

静态公共成员

bool	isDebugBuild ()
QString	location (LibraryLocation loc )
QVersionNumber	version ()

详细描述

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 使用 qt.conf 文档编制。

另请参阅 QSysInfo and 使用 qt.conf .

成员类型文档编制

enum QLibraryInfo:: LibraryLocation

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

常量	值	描述
`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.

另请参阅 location ().

成员函数文档编制

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

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

该函数在 Qt 5.0 引入。

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

Returns the location specified by loc .

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

Returns the version of the Qt library.

该函数在 Qt 5.8 引入。

另请参阅 qVersion().

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