Shutdown...?

This question was already posed some times ago: I just say: ExitWindowsEx().... Look it up in the MSDN , it''S quite easy!

Darn beat me to it!

The Win32 API function: " ExitWindowsEx", although be sure your application has the privilege before invoking it.

[edited by - Xiachunyi on March 6, 2004 11:33:51 AM]

Nothing happens here''s my code:

//---------------------------------------------------------------------------

#include <iostream.h>
#include <windows.h>
#include <windowsx.h>

int main(void)
{
	ExitWindowsEx(EWX_SHUTDOWN, NULL);
	return(0);
}

To shut down or restart the system, the calling process must use the AdjustTokenPrivileges function to enable the SE_SHUTDOWN_NAME privilege.

[edited by - Lantz on March 6, 2004 12:06:24 PM]

I would doubt a console application could call it, anyways.

quote:

---

Original post by PlayGGY
I would doubt a console application could call it, anyways.

---

Actually that shouldn''t make any difference, windows does not differ between console apps and regular ones.

How would this function work? I''m looking and I don''t knwo how to set it up

You could try something like this (i havent tried it):

HANDLE token;
OpenProcessToken( GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES, &token );

TOKEN_PRIVILEGES p;
p.PrivilegeCount = 1;
p.Privileges[0].Luid = 0;
p.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
AdjustTokenPrivileges( token, false, &p, 0, NULL, 0 );

CloseHandle( token );

Nothing happpens again. Thsi is th ecode I have so far:

HANDLE token;
OpenProcessToken( GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES, &token );
TOKEN_PRIVILEGES p;
p.PrivilegeCount = 1;
p.Privileges[0].Luid;
p.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
AdjustTokenPrivileges( token, false, &p, 0, NULL, 0 );
CloseHandle( token );
ExitWindowsEx(EWX_POWEROFF, NULL);

Oops, forgot the actual privilege we want to enable.
Try this:

HANDLE token;
OpenProcessToken( GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES, &token );

LUID luid;
LookupPrivilegeValue( NULL, SE_SHUTDOWN_NAME, &luid );  

TOKEN_PRIVILEGES p;
p.PrivilegeCount = 1;
p.Privileges[0].Luid = luid;
p.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
AdjustTokenPrivileges( token, false, &p, 0, NULL, 0 );
CloseHandle( token );
ExitWindowsEx(EWX_POWEROFF, NULL);

And if it doesn''t work check the return values.

you''re still not setting the proper privileges. The following code from msdn should get you where you want to be.

HANDLE hToken; 
TOKEN_PRIVILEGES tkp; 
 
// Get a token for this process. 

 
if (!OpenProcessToken(GetCurrentProcess(), 
        TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken)) 
    error("OpenProcessToken"); 
 
// Get the LUID for the shutdown privilege. 

 
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, 
        &tkp.Privileges[0].Luid); 
 
tkp.PrivilegeCount = 1;  // one privilege to set    

tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; 
 
// Get the shutdown privilege for this process. 

 
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, 
        (PTOKEN_PRIVILEGES)NULL, 0); 
 
// Cannot test the return value of AdjustTokenPrivileges. 

 
if (GetLastError() != ERROR_SUCCESS) 
    error("AdjustTokenPrivileges"); 
 
// Shut down the system and force all applications to close. 

 
if (!ExitWindowsEx(EWX_SHUTDOWN | EWX_FORCE, 0)) 
    error("ExitWindowsEx");