This event is sent just before
hide() returns, and also when a top-level window has been hidden (iconified) by the user.
spontaneous() is true, the event originated outside the application. In this case, the user hid the window using the window manager controls, either by iconifying the window or by switching to another virtual desktop where the window is not visible. The window will become hidden but not withdrawn. If the window was iconified,
- class PySide6.QtGui.QHideEvent#