Overview
Group
Quick Info

Windows NT
Yes
Win95
Yes
Win32s
Yes
Import Library
-
Header File
winuser.h
Unicode
No
Platform Notes
None

WM_ENDSESSION

The WM_ENDSESSION message is sent to an application after Windows processes the results of the WM_QUERYENDSESSION message. The WM_ENDSESSION message informs the application whether the Windows session is ending.

WM_ENDSESSION

fEndSession = (BOOL) wParam; // end-session flag

fLogOff = lParam // logoff flag

Parameters

fEndSession

Value of wParam. Specifies whether the session is being ended. If the session is being ended, this parameter is TRUE; otherwise, it is FALSE.

fLogOff

Value of lParam. Indicates whether the user is logging off or shutting down the system. Supported values include: ENDSESSION_LOGOFF.

Return Values

If an application processes this message, it should return zero.

Remarks

If the fEndSession parameter is TRUE, the Windows 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.

See Also

DestroyWindow
, PostQuitMessage, WM_QUERYENDSESSION

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