将内容过程中经常用的内容段收藏起来，下面资料是关于VC实现windows系统强制关机重启和注销功能的的内容，应该对码农也有帮助。
#ifndef __H_SHUTDOWN_H__
#define __H_SHUTDOWN_H__
typedef enum _SHUTDOWN_ACTION
{
ShutdownNoReboot,
ShutdownReboot,
ShutdownPowerOff
} SHUTDOWN_ACTION;
IN SYSTEM_POWER_STATE MinSystemState,
IN ULONG Flags);
class KsSystemDown
{
protected:
HMODULE hNtdll;
TOKEN_PRIVILEGES tkp;
HANDLE hToken;
lpNtShutdownSystem NtShutdownSystem;
lpNtSetSystemPowerState NtSetSystemPowerState;
public:
BOOL SystemShutdown(SHUTDOWN_ACTION action)
{
if (!NtShutdownSystem)
return FALSE;
DWORD dwRet = NtShutdownSystem(action);
if (dwRet == 0)
return TRUE;
else
return FALSE;
}
BOOL SystemPowerdown(IN POWER_ACTION SystemAction,IN SYSTEM_POWER_STATE MinSystemState,IN ULONG Flags)
{
if (!NtSetSystemPowerState)
return FALSE;
DWORD dwRet = NtSetSystemPowerState(SystemAction,MinSystemState,Flags);
if (dwRet == 0)
return TRUE;
else
return FALSE;
}
BOOL CommonLogoff()
{
return Shutdown(EWX_LOGOFF);
}
BOOL CommonShutdown()
{
return Shutdown((EWX_POWEROFF|EWX_SHUTDOWN));
}
BOOL CommonReBoot()
{
return Shutdown(EWX_REBOOT);
}
BOOL FastLogoff()
{
return Shutdown(EWX_LOGOFF|EWX_FORCE);
}
BOOL FastShutdown()
{
return Shutdown(EWX_POWEROFF|EWX_SHUTDOWN|EWX_FORCE);
}
BOOL FastReboot()
{
return Shutdown(EWX_REBOOT|EWX_FORCE);
}
BOOL Shutdown(DWORD dwValue)
{
return ExitWindowsEx(dwValue,0);
}
BOOL SuperShutdown()
{
if (NtShutdownSystem != NULL)
return NtShutdownSystem(ShutdownNoReboot);
else
return FALSE;
}
BOOL SuperReboot()
{
if (NtShutdownSystem != NULL)
return NtShutdownSystem(ShutdownReboot);
else
return FALSE;
}
public:
KsSystemDown():
NtShutdownSystem(NULL),NtSetSystemPowerState(NULL)
{
OpenProcessToken(GetCurrentProcess(),TOKEN_QUERY|TOKEN_ADJUST_PRIVILEGES,&hToken);
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, &tkp.Privileges[0].Luid);
tkp.PrivilegeCount = 1;
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, NULL, 0);
CloseHandle(hToken);
hNtdll = GetModuleHandle("ntdll.dll");
if (hNtdll)
{
NtShutdownSystem = (lpNtShutdownSystem)GetProcAddress(hNtdll,"NtShutdownSystem");
NtSetSystemPowerState = (lpNtSetSystemPowerState)GetProcAddress(hNtdll,"NtSetSystemPowerState");
}
}
~KsSystemDown()
{
tkp.Privileges[0].Attributes = 0;
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, (PTOKEN_PRIVILEGES) NULL, 0);
}
};
#endif