QAbstractExtensionManager#

The QAbstractExtensionManager class provides an interface for extension managers in Qt Designer. More…

Synopsis#

Virtual functions#

def extension (object, iid)
def registerExtensions (factory, iid)
def unregisterExtensions (factory, iid)

Note

This documentation may contain snippets that were automatically translated from C++ to Python. We always welcome contributions to the snippet translation. If you see an issue with the translation, you can also let us know by creating a ticket on https:/bugreports.qt.io/projects/PYSIDE

Detailed Description#

QAbstractExtensionManager is not intended to be instantiated directly; use the QExtensionManager instead.

In Qt Designer, extension are not created until they are required. For that reason, when implementing a custom extension, you must also create a QExtensionFactory , i.e a class that is able to make an instance of your extension, and register it using Qt Designer's extension manager .

When an extension is required, Qt Designer's extension manager will run through all its registered factories calling createExtension() for each until the first one that is able to create the requested extension for the selected object, is found. This factory will then make an instance of the extension.

See also

QExtensionManager QExtensionFactory

class PySide6.QtDesigner.QAbstractExtensionManager#

abstract PySide6.QtDesigner.QAbstractExtensionManager.extension(object, iid)#

Parameters:

object – PySide6.QtCore.QObject
iid – str

Return type:

PySide6.QtCore.QObject

Returns the extension, specified by iid, for the given object.

abstract PySide6.QtDesigner.QAbstractExtensionManager.registerExtensions(factory, iid)#

Parameters:

factory – PySide6.QtDesigner.QAbstractExtensionFactory
iid – str

abstract PySide6.QtDesigner.QAbstractExtensionManager.unregisterExtensions(factory, iid)#

Parameters:

factory – PySide6.QtDesigner.QAbstractExtensionFactory
iid – str

Unregister the given factory with the extension specified by iid.