public static SafeTokenHandle FromThread(IntPtr hThread, AccessTypes desiredAccess = AccessTypes.TokenDuplicate, bool openAsSelf = true)
{
SafeTokenHandle val;
if (!NativeMethods.OpenThreadToken(hThread, desiredAccess, openAsSelf, out val))
{
if (Marshal.GetLastWin32Error() == ERROR_NO_TOKEN)
{
SafeTokenHandle pval = FromCurrentProcess();
if (!NativeMethods.DuplicateTokenEx(pval, AccessTypes.TokenImpersonate | desiredAccess, IntPtr.Zero, SECURITY_IMPERSONATION_LEVEL.Impersonation, TokenType.TokenImpersonation, ref val))
{
throw new System.ComponentModel.Win32Exception();
}
if (!NativeMethods.SetThreadToken(IntPtr.Zero, val))
{
throw new System.ComponentModel.Win32Exception();
}
}
else
{
throw new System.ComponentModel.Win32Exception();
}
}
return(val);
}
