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HANDLE hToken; // handle to process token

TOKEN_PRIVILEGES tkp; // pointer to token structure

BOOL fResult; // system shutdown flag

// Get the current process token handle so we can get shutdown

// privilege.

if (!OpenProcessToken(GetCurrentProcess(),

TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))

ErrorHandler("OpenProcessToken failed.");

// Get the LUID for 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 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)

ErrorHandler("AdjustTokenPrivileges enable failed.");

// Display the shutdown dialog box and start the time-out countdown.

fResult = InitiateSystemShutdown( NULL, // shut down local computer

"Click on the main window and press \

the Escape key to cancel shutdown.", // message to user

20, // time-out period

FALSE, // ask user to close apps

TRUE); // reboot after shutdown


if (!fResult)


{

ErrorHandler("InitiateSystemShutdown failed.");

}
// Disable shutdown privilege.


tkp.Privileges[0].Attributes = 0;


AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,


(PTOKEN_PRIVILEGES) NULL, 0);


if (GetLastError() != ERROR_SUCCESS)


{

ErrorHandler("AdjustTokenPrivileges disable failed.");

}

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这是VC参考一下