QMetaObject superclass
时间: 2023-11-04 11:17:46 浏览: 53
The QMetaObject class is a fundamental class in the Qt framework that provides meta-information about Qt classes. It is the base class for all Qt objects, including QObject, QWidget, and many others.
The QMetaObject class provides a static method called superClass, which returns the QMetaObject of the superclass of a given class. This method is useful for determining the hierarchy of a Qt object.
For example, if you have a QObject subclass called MyObject, you can get the QMetaObject of its superclass using the following code:
```cpp
const QMetaObject* superClass = MyObject::staticMetaObject.superClass();
```
This will return the QMetaObject of the QObject class, which is the superclass of MyObject.