QPropertyNotifier Class
QPropertyNotifier 类负责控制安装在QProperty 上的变更回调的生命周期。更多内容...
| 头文件： | #include <QPropertyNotifier> |
| CMake： | find_package(Qt6 REQUIRED COMPONENTS Core) target_link_libraries(mytarget PRIVATE Qt6::Core) |
| qmake： | QT += core |
| 自： | Qt 6.2 |
| 继承自： | QPropertyObserver |
公共函数
详细说明
当通过 `QProperty::addNotifier` 在 `QProperty ` 上注册回调以监听属性值的变更时，会创建 `QPropertyNotifier`。只要变更处理程序仍处于活动状态，该回调就保持已安装状态。
处理程序实例可以使用移动语义在 C++ 作用域之间进行传递。
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