QGenericPlugin Class

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

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

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公共函数

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

详细描述

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.