QGenericPlugin Class

The QGenericPlugin class is an abstract base class for plugins. 更多...

头: #include <QGenericPlugin>
qmake: QT += gui
继承: QObject

公共函数

QGenericPlugin (QObject * parent = nullptr)
virtual ~QGenericPlugin ()
virtual QObject * create (const QString & key , const QString & specification ) = 0

静态公共成员

const QMetaObject staticMetaObject

额外继承成员

详细描述

The QGenericPlugin class is an abstract base class for plugins.

A mouse plugin can be created by subclassing QGenericPlugin and reimplementing the pure virtual create () function. By exporting the derived class using the Q_PLUGIN_METADATA () 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。

The json metadata file should contain a list of keys supported by this plugin.

另请参阅 QGenericPluginFactory .

成员函数文档编制

QGenericPlugin:: QGenericPlugin ( QObject * parent = nullptr)

Constructs a plugin with the given parent .

Note that this constructor is invoked automatically by the moc generated code that exports the plugin, so there is no need for calling it explicitly.

[虚拟] 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.