private static string GetErrorMessage(int error, string customErrMsg)
{
string lastErrMsg = null;
if (!customErrMsg.IsNull())
{
customErrMsg = customErrMsg.Trim(); //.NTrim();
}
try
{
StringBuilder lpBuffer = new StringBuilder(0x100);
if (ChoKernel32.FormatMessage(0x3200, Win32Common.NullHandleRef, error, 0, lpBuffer, lpBuffer.Capacity + 1, IntPtr.Zero) == 0)
{
lastErrMsg = "Unknown error (0x" + Convert.ToString(error, 0x10) + ")";
}
int length = lpBuffer.Length;
while (length > 0)
{
char ch = lpBuffer[length - 1];
if ((ch > ' ') && (ch != '.'))
{
break;
}
length--;
}
lastErrMsg = lpBuffer.ToString(0, length);
}
finally
{
if (!String.IsNullOrEmpty(customErrMsg))
{
if (customErrMsg.EndsWith("."))
{
lastErrMsg = String.Format("{0} {1}.", customErrMsg, lastErrMsg);
}
else
{
lastErrMsg = String.Format("{0}. {1}.", customErrMsg, lastErrMsg);
}
}
}
return(lastErrMsg);
}
public static bool GrandShutdownPrivilege()
{
// This code mimics the MSDN defined way to adjust privilege for shutdown
// http://msdn.microsoft.com/library/default.asp?url=/library/en-us/sysinfo/base/shutting_down.asp
IntPtr tokenHandle = IntPtr.Zero;
try
{
if (!OpenProcessToken(ChoKernel32.GetCurrentProcess(), (int)Win32Common.TOKEN_ADJUST_PRIVILEGES | (int)Win32Common.TOKEN_QUERY, ref tokenHandle))
{
return(false);
}
LUID luid = new LUID();
LookupPrivilegeValue(null, Win32Common.SE_SHUTDOWN_NAME, ref luid);
TOKEN_PRIVILEGES tokenPrivileges = new TOKEN_PRIVILEGES();
tokenPrivileges.PrivilegeCount = 1;
tokenPrivileges.Privileges = new LUID_AND_ATTRIBUTES[] { new LUID_AND_ATTRIBUTES(luid, (int)Win32Common.SE_PRIVILEGE_ENABLED) };
TOKEN_PRIVILEGES tokenPrivileges1 = new TOKEN_PRIVILEGES();
int retLen = 0;
bool result = AdjustTokenPrivileges(tokenHandle, false, ref tokenPrivileges, 0, ref tokenPrivileges1, ref retLen);
if (ChoKernel32.GetLastError() != 0)
{
throw new Exception("Failed to grant shutdown privilege.");
}
return(true);
}
finally
{
if (tokenHandle != IntPtr.Zero)
{
ChoKernel32.CloseHandle(tokenHandle);
}
}
}
