The QGenericPlugin class is an abstract base class for plugins. 更多...
头: | #include <QGenericPlugin> |
qmake: | QT += gui |
继承: | QObject |
QGenericPlugin (QObject * parent = nullptr) | |
virtual | ~QGenericPlugin () |
virtual QObject * | create (const QString & key , const QString & specification ) = 0 |
const QMetaObject | staticMetaObject |
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 .
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.