ShuttingDown 
Author Message
 ShuttingDown

Hi,

    Would like to know if one could shut down a computer trough APIs. If so
how should I do it.
    Can I shutdown just my computer or, in my intranet, shutdown any of the
computers??

Thanks in advance

Raul Bandarrinha



Sat, 08 Sep 2001 03:00:00 GMT  
 ShuttingDown

Taken from the Win32 Programmer's Reference:

The ExitWindowsEx function either logs off, shuts down, or shuts down and restarts the system.

BOOL ExitWindowsEx(

    UINT uFlags, // shutdown operation
    DWORD dwReserved  // reserved
   );

Parameters

uFlags

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.

dwReserved

Reserved; this parameter is ignored.

Return Values

If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. 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

-----

Thomas.


Quote:

>Hi,

>    Would like to know if one could shut down a computer trough APIs. If so
>how should I do it.
>    Can I shutdown just my computer or, in my intranet, shutdown any of the
>computers??

>Thanks in advance

>Raul Bandarrinha



Sat, 08 Sep 2001 03:00:00 GMT  
 ShuttingDown
To shut down a remote Computer use the

InitiateSystemShutdown() call.

Look in your MSDN Reference, in the Platform SDK Books for
further Informations.

Regards,
    Freddy
__

Quote:

>Hi,

>    Would like to know if one could shut down a computer trough APIs. If so
>how should I do it.
>    Can I shutdown just my computer or, in my intranet, shutdown any of the
>computers??

>Thanks in advance

>Raul Bandarrinha



Sat, 08 Sep 2001 03:00:00 GMT  
 ShuttingDown

|
|Hi,
|
|    Would like to know if one could shut down a computer trough APIs.
If so
|how should I do it.
|    Can I shutdown just my computer or, in my intranet, shutdown any
of the
|computers??

Check out this KB article:

HOWTO: Programmatically Restart or Log Off a Computer
http://support.microsoft.com/support/kb/articles/q168/7/96.asp

;-) Cool
Hasta Luego
Adrian Maull [MCSD]
http://www.zebra.net/~adrianm/index.html



Sat, 08 Sep 2001 03:00:00 GMT  
 ShuttingDown
For shutting down a remote  computer u can use
InitiateSystemShutdown api.

For shutting down a local computer ExitWindows() function can be used.

regards:
vinodkumar  k.l


Quote:

> Hi,

>     Would like to know if one could shut down a computer trough APIs. If
so
> how should I do it.
>     Can I shutdown just my computer or, in my intranet, shutdown any of
the
> computers??

> Thanks in advance

> Raul Bandarrinha



Sun, 09 Sep 2001 03:00:00 GMT  
 
 [ 5 post ] 

 Relevant Pages 

1. Shuttingdown & Powerdown in Win2K

2. ShuttingDown

3. ShuttingDown

 

 
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