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。
					
						见
						
							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 .