The QComponentFactory class provides static functions to create and register components. Más...

#include <qcomponentfactory_p.h>

Métodos públicos estáticos
static QRESULT	createInstance (const QString &cid, const QUuid &iid, QUnknownInterface *instance, QUnknownInterface outer=0)
static QRESULT	registerServer (const QString &filename)
static QRESULT	unregisterServer (const QString &filename)
static bool	registerComponent (const QUuid &cid, const QString &filename, const QString &name=QString::null, int version=0, const QString &description=QString::null)
static bool	unregisterComponent (const QUuid &cid)
static QRESULT	createInstance (const QString &cid, const QUuid &iid, QUnknownInterface *instance, QUnknownInterface outer=0)
static QRESULT	registerServer (const QString &filename)
static QRESULT	unregisterServer (const QString &filename)
static bool	registerComponent (const QUuid &cid, const QString &filename, const QString &name=QString::null, int version=0, const QString &description=QString::null)
static bool	unregisterComponent (const QUuid &cid)

Descripción detallada

The QComponentFactory class provides static functions to create and register components.

Documentación de las funciones miembro

QRESULT QComponentFactory::createInstance	(	const QString &	cid,
		const QUuid &	iid,
		QUnknownInterface **	iface,
		QUnknownInterface *	outer = `0`
	)		`[static]`

Searches for the component identifier cid in the system component registry, loads the corresponding component server and queries for the interface iid. iface is set to the resulting interface pointer. cid can either be the UUID or the name of the component.

The parameter outer is a pointer to the outer interface used for containment and aggregation and is propagated to the createInstance() implementation of the QComponentFactoryInterface in the component server if provided.

The function returns QS_OK if the interface was successfully instantiated, QE_NOINTERFACE if the component does not provide an interface iid, or QE_NOCOMPONENT if there was an error loading the component.

Example:

  QInterfacePtr<MyInterface> iface;
  if ( QComponentFactory::createInstance( IID_MyInterface, CID_MyComponent, (QUnknownInterface**)&iface ) == QS_OK )
      iface->doSomething();
      ...
  }

static QRESULT QComponentFactory::createInstance	(	const QString &	cid,
		const QUuid &	iid,
		QUnknownInterface **	instance,
		QUnknownInterface *	outer = `0`
	)		`[static]`

bool QComponentFactory::registerComponent	(	const QUuid &	cid,
		const QString &	filepath,
		const QString &	name = `QString::null`,
		int	version = `0`,
		const QString &	description = `QString::null`
	)		`[static]`

Registers the component with id cid in the system component registry and returns TRUE if the component was registerd successfully, otherwise returns FALSE. The component is provided by the component server at filepath and registered with an optional name, version and description.

This function does nothing and returns FALSE if a component with an identical cid does already exist on the system.

A component that has been registered with a name can be created using both the cid and the name value using createInstance().

Call this function for each component in an implementation of registerComponents() .

Ver también:: unregisterComponent(), registerServer(), createInstance()

static bool QComponentFactory::registerComponent	(	const QUuid &	cid,
		const QString &	filename,
		const QString &	name = `QString::null`,
		int	version = `0`,
		const QString &	description = `QString::null`
	)		`[static]`

QRESULT QComponentFactory::registerServer ( const QString & filename ) [static]

Loads the shared library filename and queries for a QComponentRegistrationInterface. If the library implements this interface, the registerComponents() function is called.

Returns TRUE if the interface is found and successfully called, otherwise returns FALSE.

static QRESULT QComponentFactory::registerServer ( const QString & filename ) [static]

bool QComponentFactory::unregisterComponent ( const QUuid & cid ) [static]

Unregisters the component with id cid from the system component registry and returns TRUE if the component was unregistered successfully, otherwise returns FALSE.

Call this function for each component in an implementation of unregisterComponents() .

Ver también:: registerComponent(), unregisterServer()

static bool QComponentFactory::unregisterComponent ( const QUuid & cid ) [static]

QRESULT QComponentFactory::unregisterServer ( const QString & filename ) [static]

Loads the shared library filename and queries for a QComponentRegistrationInterface. If the library implements this interface, the unregisterComponents() function is called.

Returns TRUE if the interface is found and successfully unregistered, otherwise returns FALSE.

static QRESULT QComponentFactory::unregisterServer ( const QString & filename ) [static]

La documentación para esta clase fue generada a partir de los siguientes ficheros:

src/qt/include/private/qcomponentfactory_p.h
src/qt/src/tools/qcomponentfactory_p.h
src/qt/src/tools/qcomponentfactory.cpp

Métodos públicos estáticos

Descripción detallada

Documentación de las funciones miembro