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ShutDown The Computer

Posted on 1998-07-06
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Last Modified: 2012-05-04
How can i shut down the computer with one button
i use Delphi 3.
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Question by:mummi
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ZifNab earned 40 total points
ID: 1357186
Hi mummi,

I've got this explenation (author is written below) :

The ExitWindowsEx function either logs off, shuts down, or shuts down and
restarts the system. BOOL ExitWindowsEx(    UINT uFlags,      // shutdown operation
    DWORD dwReserved       // reserved   );       ParametersuFlags
Specifies the type of shutdown. This parameter must be some combination of
the following values: Value                    Meaning
EWX_FORCE      Forces processes to terminate. When this flag is set, Windows
does not send the messages WM_QUERYENDSESSION and WM_ENDSESSION to the
applications currently running in the system. This can cause the
applications to lose data. Therefore, you should only use this flag in an
emergency.
EWX_LOGOFF      Shuts down all processes running in the security context of the
process that called the ExitWindowsEx function. Then it logs the user off.
EWX_POWEROFF      Shuts down the system and turns off the power. The system must
support the power-off feature.Windows NT: The calling process must have the
SE_SHUTDOWN_NAME privilege. For more information, see the following Remarks
section. Windows 95: Security privileges are not supported or required.
EWX_REBOOT      Shuts down the system and then restarts the system. Windows NT:
The calling process must have the SE_SHUTDOWN_NAME privilege. For more
information, see the following Remarks section. Windows 95: Security
privileges are not supported or required.
EWX_SHUTDOWN      Shuts down the system to a point at which it is safe to turn
off the power. All file buffers have been flushed to disk, and all running
processes have stopped. Windows NT: The calling process must have the
SE_SHUTDOWN_NAME privilege. For more information, see the following Remarks
section. Windows 95: Security privileges are not supported or required.
dwReservedReserved; this parameter is ignored.  Return Values
If the function succeeds, the return value is TRUE.
If the function fails, the return value is FALSE. To get extended error
information, call GetLastError. Remarks
The ExitWindowsEx function returns as soon as it has initiated the
shutdown. The shutdown or logoff then proceeds asynchronously.
During a shutdown or log-off operation, applications that are shut down are
allowed a specific amount of time to respond to the shutdown request. If
the time expires, Windows displays a dialog box that allows the user to
forcibly shut down the application, to retry the shutdown, or to cancel the
shutdown request. If the EWX_FORCE value is specified, Windows always
forces applications to close and does not display the dialog box.
The ExitWindowsEx function sends a separate notification message,
CTRL_SHUTDOWN_EVENT or CTRL_LOGOFF_EVENT as the situation warrants, to
console processes. A console process routes these messages to its
HandlerRoutine functions, which are added and removed by calls to the
SetConsoleCtrlHandler function. ExitWindowsEx sends these notification
messages asynchronously; thus, an application cannot assume that the
console notification messages have been handled when a call to
ExitWindowsEx returns.
Windows NT: To shut down or restart the system, the calling process must
use the AdjustTokenPrivileges function to enable the SE_SHUTDOWN_NAME
privilege. For more information about security privileges, see Privileges.
Windows 95: Security privileges are not supported or required.See Also
AdjustTokenPrivileges, ExitWindows, HandlerRoutine, SetConsoleCtrlHandler
Author: neilw@zentor.demon.co.uk  (Neil Washbrook)

Why such a dark name?

Zif.
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