QT_QML_SINGLETON_TYPE

Marks a QML file as providing a singleton type.

该特性在 Qt 6.2 引入。

A .qml file that provides a singleton type needs to have its QT_QML_SINGLETON_TYPE source property set to TRUE to ensure that the singleton command is written into the qmldir file. This must be done in addition to the QML file containing the pragma Singleton 语句。

qt_target_qml_sources() for an example on how to set the QT_QML_SINGLETON_TYPE 特性。

另请参阅 qt_target_qml_sources .