windows api 关机代码

#include <windows.h>#pragma comment(lib, "user32.lib")#pragma comment(lib, "advapi32.lib")BOOL MySystemShutdown(){   HANDLE hToken;    TOKEN_PRIVILEGES tkp;     // Get a token for this process.     if (!OpenProcessToken(GetCurrentProcess(),         TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))       return( FALSE );     // 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);     if (GetLastError() != ERROR_SUCCESS)       return FALSE;     // Shut down the system and force all applications to close.     if (!ExitWindowsEx(EWX_SHUTDOWN | EWX_FORCE,                SHTDN_REASON_MAJOR_OPERATINGSYSTEM |               SHTDN_REASON_MINOR_UPGRADE |               SHTDN_REASON_FLAG_PLANNED))       return FALSE;    //shutdown was successful   return TRUE;}