Minimize the window, the window status will appear 0000000

In the stationary state, using the timer to minimize the window, the window state will appear 0000000 window state, x11 does not have this situation, I encountered in the development of the situation is:
server-side notification of the state of the window is minimized, the local call showMinimized () method to minimize the window, at this time the window eventFilter captured the window state first changed to 1 (WindowMinimized), and changed to 0 (WindowNoState), resulting in the state of the message loop cross change, showing the splash screen effect;