QGenericPlugin Class

The QGenericPlugin class is an abstract base class for window-system related plugins in Qt QPA. 更多...

头：	#include <QGenericPlugin>
Since:	Qt 4.8
继承：	QObject

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公共函数

	QGenericPlugin (QObject * parent = 0)
	~QGenericPlugin ()

重实现公共函数

virtual QObject *	create (const QString & key , const QString & specification ) = 0
virtual QStringList	keys () const = 0

29 公共函数继承自 QObject

额外继承成员

1 特性继承自 QObject
1 公共槽继承自 QObject
1 信号继承自 QObject
7 静态公共成员继承自 QObject
8 保护函数继承自 QObject

详细描述

The QGenericPlugin class is an abstract base class for window-system related plugins in Qt QPA.

Note that this class is only available in Qt QPA.

A mouse plugin can be created by subclassing QGenericPlugin and reimplementing the pure virtual keys () 和 create () functions. By exporting the derived class using the Q_EXPORT_PLUGIN2 () macro, The default implementation of the QGenericPluginFactory class will automatically detect the plugin and load the driver into the server application at run-time. See 如何创建 Qt 插件了解细节。

另请参阅 QGenericPluginFactory .

成员函数文档编制

QGenericPlugin:: QGenericPlugin ( QObject * parent = 0)

Constructs a plugin with the given parent .

Note that this constructor is invoked automatically by the Q_EXPORT_PLUGIN2 () macro, so there is no need for calling it explicitly.

QGenericPlugin:: ~QGenericPlugin ()

Destroys the plugin.

Note that Qt destroys a plugin automatically when it is no longer used, so there is no need for calling the destructor explicitly.

`[pure virtual]` QObject * QGenericPlugin:: create (const QString & key , const QString & specification )

Implement this function to create a driver matching the type specified by the given key and specification parameters. Note that keys are case-insensitive.

另请参阅 keys ().

`[pure virtual]` QStringList QGenericPlugin:: keys () const

Implement this function to return the list of valid keys, i.e. the drivers supported by this plugin.

另请参阅 create ().

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