The QWindowStateChangeEvent class provides the window state before a window state change. 更多...
| 头: | #include <QWindowStateChangeEvent> |
| qmake: | QT += gui |
| 继承: | QEvent |
| Qt::WindowStates | oldState () const |
The QWindowStateChangeEvent class provides the window state before a window state change.
返回改变之前的窗口状态。