QChildWindowEvent Class
QChildWindowEvent 类包含用于处理子窗口变化的事件参数。更多内容...
| 头文件： | #include <QChildWindowEvent> |
| CMake： | find_package(Qt6 REQUIRED COMPONENTS Gui) target_link_libraries(mytarget PRIVATE Qt6::Gui) |
| qmake： | QT += gui |
| 自： | Qt 6.7 |
| 继承自： | QEvent |
- 所有成员列表（包括继承的成员）
- QChildWindowEvent 属于事件类。
公共函数
| QChildWindowEvent(QEvent::Type type, QWindow *childWindow) | |
| QWindow * | child() const |
受保护函数
| QChildWindowEvent(QChildWindowEvent &&) | |
| QChildWindowEvent & | operator=(QChildWindowEvent &&) |
| QChildWindowEvent & | operator=(const QChildWindowEvent &other) |
详细说明
当子窗口被添加或删除时，子窗口事件会被发送至窗口。
在这两种情况下，您只能假设子窗口是QWindow ，而不能假设它是该类的任何子类。这是因为在QEvent::ChildWindowAdded 的情况下，子类尚未完全构建；而在QEvent::ChildWindowRemoved 的情况下，它可能已经被销毁了。
成员函数文档
[explicit] QChildWindowEvent::QChildWindowEvent(QEvent::Type type, QWindow *childWindow)
为childWindow 构建一个特定type 的子窗口事件对象。
type 可以是QEvent::ChildWindowAdded 或QEvent::ChildWindowRemoved 。
另请参阅 child()。
[protected delete] QChildWindowEvent::QChildWindowEvent(QChildWindowEvent &&)
通过“move”操作构造一个QChildWindowEvent 的实例。该函数已被删除。
QWindow *QChildWindowEvent::child() const
返回已添加或已移除的子窗口。
[protected delete] QChildWindowEvent &QChildWindowEvent::operator=(QChildWindowEvent &&)
将other 按移动赋值方式赋值给此QChildWindowEvent 实例。此函数已被删除。
[noexcept protected default] QChildWindowEvent &QChildWindowEvent::operator=(const QChildWindowEvent &other)
将other 复制并赋值给此QChildWindowEvent 实例。
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