QPropertyNotifier Class
QPropertyNotifier 类可控制安装在QProperty 上的更改回调的生命周期。
| 头文件： | #include <QPropertyNotifier> |
| CMake： | find_package(Qt6 REQUIRED COMPONENTS Core)target_link_libraries(mytarget PRIVATE Qt6::Core) |
| qmake： | QT += core |
| 继承于 | QPropertyObserver |
详细描述
QPropertyNotifier 是在QProperty 上注册回调以监听属性值变化时创建的，使用QProperty::addNotifier 。只要变化处理程序还活着，回调就会一直安装。
处理程序实例可使用移动语义在 C++ 作用域之间传输。
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