How can I get the Selected translation result?

When in the editor I can get retrieve the current TM matches like this:

    if (_editorController.TranslationResultsController.HasTranslationResults)
        var trc = _editorController.TranslationResultsController;
        var results = trc.TryGetCurrentTranslationResults();
        if (results != null && results.LookupResults.Count > 0)

While I can then access all of the results I cannot see which one is currently selected. By default it is the first one (results.LookupResults[0]) but of course the user may select a different one.

Is there there a way to determine this via the API?