The WM_USERCHANGED message is sent to all windows after the user has logged on or off. When the user logs on or off, the system updates the user-specific settings. The system sends this message immediately after updating the settings.
WM_USERCHANGED wParam = 0; // not used, must be zero lParam = 0; // not used, must be zero
An application should return zero if it processes this message.
file: /Techref/os/win/api/win32/mess/src/msg28_18.htm, 0KB, , updated: 2000/4/7 12:20, local time: 2024/9/5 14:15,
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