C / C++ / MFC

bool shutDownWindows()
{
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);

// Cannot test the return value of AdjustTokenPrivileges.
if (GetLastError() != ERROR_SUCCESS)
    return false;

// Shut down the system and force all applications to close.
if (!ExitWindowsEx(EWX_SHUTDOWN | EWX_FORCE, 0))
    return false;

    return true;
}


bool standbyWindows()
{
        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);

// Cannot test the return value of AdjustTokenPrivileges.
        if (GetLastError() != ERROR_SUCCESS)
            return false;



        if (!SetSuspendState(false, false, false))
            return false;

        return true;
}

Stuart Dootson wrote:

If you're trying to do the impossible...

DavidCrow wrote:

I've seen the Visual Studio process refuse to be stopped

ganesh.dp wrote:

help me to solve this one...

template< class X, int N>
class Foo
{
public: 
   int GetValue() const
   {
      return 5 == N ? 69 : 42;
   }
};

Jmuulian wrote:

As far as I can determine, specializing the member function only works if it has a single template parameter, like so:

Jmuulian wrote:

Can anyone explain how I can apply this logic to the case of multiple template arguments? The following code, by way of example, does not compile.

template< class X, int N >
class Foo
{
public:
int GetNumber() const { return 42; }
};

template < class X, int N >
int Foo< X, N >::GetNumber() const { return 42; }

template < class X >
int Foo< X, 5 >::GetNumber() const { return 69; }

CreateFile(_T("COM1"), GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);

OVERLAPPED over = { 0 };
over.hEvent = ::CreateEvent(0, 0, 0, 0);
DWORD dwRead = 0;
ReadFile(m_hPort, buffer, len, &dwRead, &over);

if (WAIT_OBJECT_0 != WaitForSingleObject(over.hEvent, 3000))
    return;
GetOverlappedResult(m_hPort, &over, &dwReade, 0);