Synopsis¶

Virtual methods¶

def extension()
def registerExtensions()
def unregisterExtensions()

Note

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Detailed Description¶

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

In Qt Widgets 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 Widgets Designer’s extension manager .

When an extension is required, Qt Widgets 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

abstract extension(object, iid)¶

Parameters:

object – QObject
iid – str

Return type:

QObject

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

abstract registerExtensions(factory, iid)¶

Parameters:

factory – QAbstractExtensionFactory
iid – str

abstract unregisterExtensions(factory, iid)¶

Parameters:

factory – QAbstractExtensionFactory
iid – str

Unregister the given factory with the extension specified by iid.