以下引用 The WM_ENDSESSION message is sent to an application after the system processes the results of the WM_QUERYENDSESSION message. The WM_ENDSESSION message informs the application whether the session is ending.
A window receives this message through its WindowProc function
▼Parameters wParam: Specifies whether the session is being ended. If the session is being ended, this parameter is TRUE; otherwise, it is FALSE.
▼Remarks If the wParam parameter is TRUE, the session can end any time after all applications have returned from processing this message. Therefore, an application should perform all tasks required for termination before returning from this message.
The application need not call the DestroyWindow or PostQuitMessage function when the session is ending.