/// <summary>
/// Impersonates security context on current thread
/// </summary>
public void ImpersonateContext()
{
// check object state
if (_disposed)
{
throw new ObjectDisposedException(GetType().FullName);
}
// impersonate context
int error = SSPINative.ImpersonateSecurityContext(ref _contextHandle);
if (error < 0)
{
throw new SSPIException(error, "Could not impersonate security context");
}
}