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ExitWindowsEx(EWX_SHUTDOWN, 0);
ExitWindowsEx(EWX_REBOOT, 0);
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EWX_FORCE
EWX_LOGOFF
EWX_POWEROFF

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ExitWindowsEx(EWX_SHUTDOWN, 0); //¹Ø»ú
ExitWindowsEx(EWX_REBOOT, 0); //ÖØÆô

Windows NT/2000 ¼°ºóÐø°æ±¾ÔòÓа²È«ÐÔÒªÇ󣬳ÌÐò±ØÐëÓµÓÐSE_SHUTDOWN_NAMEȨÏÞ²ÅÄܳɹ¦µ÷ÓÃExitwindowsEx
ÒªÌá¸ßȨÏÞ¾ÍҪʹÓÃAdjustTokenPrivileges

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HANDLE hToken;
TOKEN_PRIVILEGES tkp,tkpNew;
LUID int64LpUid;

OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY,&hToken)
LookupPrivilegeValue(NULL,"SeShutdownPrivilege",&int64LpUid);
tkp.PrivilegeCount=1;
tkp.Privileges[0].Liud=int64LpUid;
tkp.Privileges[0].Attributes=SE_PRIVILEGE_ENABLED;
AdjustTokenPrivileges(hToken,FALSE,&tkp,sizeof(tkp),&tkpNew,&dwSize);

******************************Ôø¾­Óùý***************************

 HANDLE hToken;
 TOKEN_PRIVILEGES tkp;
 
 // Get a token for this process.
 
 if (!OpenProcessToken(GetCurrentProcess(),
  TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken)){
  //   AfxMessageBox("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) {
  //  AfxMessageBox("AdjustTokenPrivileges");
 }
 
 // Shut down the system and force all applications to close.
 
 if (!ExitWindowsEx(EWX_SHUTDOWN | EWX_FORCE |EWX_POWEROFF, 0)){
  return;
 }