qmlRegisterSingletonType

qmlRegisterSingletonType(pytype: type, uri: str, versionMajor: int, versionMinor: int, typeName: str) → int

Parameters

• pytype (type) – Python class

• uri (str) – uri to use while importing the component in QML

• versionMajor (int) – major version

• versionMinor (int) – minor version

• typeName (str) – name exposed to QML

Returns

int (the QML type id)

This function registers a Python type as a singleton in the QML system.

Alternatively, the QmlSingleton decorator can be used.

qmlRegisterSingletonType(pytype: type, uri: str, versionMajor: int, versionMinor: int, typeName: str, callback: object) → int

Parameters

• pytype (type) – Python class

• uri (str) – uri to use while importing the component in QML

• versionMajor (int) – major version

• versionMinor (int) – minor version

• typeName (str) – name exposed to QML

• callback (object) – Python callable (to handle Python type)

Returns

int (the QML type id)

This function registers a Python type as a singleton in the QML system using the provided callback (which gets a QQmlEngine as a parameter) to generate the singleton.

qmlRegisterSingletonType(uri: str, versionMajor: int, versionMinor: int, typeName: str, callback: object) → int

Parameters

• uri (str) – uri to use while importing the component in QML

• versionMajor (int) – major version

• versionMinor (int) – minor version

• typeName (str) – name exposed to QML

• callback (object) – Python callable (to handle QJSValue)

Returns

int (the QML type id)

This function registers a QJSValue as a singleton in the QML system using the provided callback (which gets a QQmlEngine as a parameter) to generate the singleton.