How do I interact with users for hands-free operation?

// Instantiate TalkListen object
CTalkListen* _TalkListen = new CTalkListen();
if (_TalkListen =! NULL)
{
    // Set license properties
    //_TalkListen->SetLicense(L"LicenseRegistrationNumber", L"LicenseSerialNumber");
    // Else, for evaluation, set only evaluation serial number
    _TalkListen->SetLicense(L"", L"EvaluationSerialNumber");
    // Create synthesizer
    CSAPI5Synthesizer* _Synthesizer = _TalkListen->CreateSAPI5Synthesizer();
    if (_Synthesizer != NULL)
    {
        _Synthesizer->Talk(L"This is the easiest way to synthesize.");
    }
    // Create recognizer
    CSAPI5Recognizer* _Recognizer = _TalkListen->CreateSAPI5Recognizer();
    if (_Recognizer != NULL)
    {
        wchar_t* pszRecognitionResults = _Recognizer->Listen();
    }
}
                    

// Instantiate TalkListen object
CTalkListen* _TalkListen = new CTalkListen();
if (_TalkListen =! NULL)
{
    // Set license properties
    //_TalkListen->SetLicense("LicenseRegistrationNumber", "LicenseSerialNumber");
    // Else, for evaluation, set only evaluation serial number
    _TalkListen->SetLicense("", "EvaluationSerialNumber");
    // Create synthesizer
    CSAPI5Synthesizer* _Synthesizer = _TalkListen->CreateSAPI5Synthesizer();
    if (_Synthesizer != NULL)
    {
        _Synthesizer->Talk("This is the easiest way to synthesize.");
    }
    // Create recognizer
    CSAPI5Recognizer* _Recognizer = _TalkListen->CreateSAPI5Recognizer();
    if (_Recognizer != NULL)
    {
        String recognitionResults = _Recognizer->Listen();
    }
}
                

var
    _TalkListen: TTalkListen;
    _Recognizer: TSAPI5Recognizer;
    _Synthesizer: TSAPI5Synthesizer;
    recognitionResults: string;
begin
    // Instantiate TalkListen object
    _TalkListen := TTalkListen.Create();
    if (_TalkListen <> nil) then
    begin
        // Set license properties
        //_TalkListen.SetLicense('LicenseRegistrationNumber', 'LicenseSerialNumber');
        // Else, for evaluation, set only evaluation serial number
        _TalkListen.SetLicense('', 'EvaluationSerialNumber');
        // Create synthesizer
        _Synthesizer := _TalkListen.CreateSAPI5Synthesizer();
        if (_Synthesizer <> nil) then
        begin
            _Synthesizer.Talk('This is the easiest way to synthesize.');
        end;
        // Create recognizer
        _Recognizer := _TalkListen.CreateSAPI5Recognizer();
        if (_Recognizer <> nil) then
        begin
            recognitionResults := _Recognizer.Listen();
        end;
    end;
end;
    

// Create TalkListen object
JTalkListen _TalkListen = new JTalkListen();
// Set license properties
//_TalkListen.setLicense("LicenseRegistrationNumber", "LicenseSerialNumber");
// Else, for evaluation, set only evaluation serial number
_TalkListen.setLicense("", "EvaluationSerialNumber");
JSAPI5Synthesizer _Synthesizer = _TalkListen.createSAPI5Synthesizer();
if (_Synthesizer != null)
{
        _Synthesizer.talk("This is the easiest way to synthesize.");
}
JSAPI5Recognizer _Recognizer = _TalkListen.createSAPI5Recognizer();
if (_Recognizer != null)
{
        String recognitionResults = _Recognizer.listen();
}
    

Dim _TalkListen As NTalkListen
Dim _Recognizer As NSAPI5Recognizer
Dim _Synthesizer As NSAPI5Synthesizer
Dim resultsResults As String
    ' Instantiate TalkListen
    _TalkListen = New NTalkListen()
    If (_TalkListen IsNot Nothing) Then
        ' Set license properties
        '_TalkListen.SetLicense("LicenseRegistrationNumber", "LicenseSerialNumber")
        ' Else, for evaluation, set only evaluation serial number
        _TalkListen.SetLicense(String.Empty, "EvaluationSerialNumber")
        _Synthesizer = _TalkListen.CreateSAPI5Synthesizer()
        If (_Synthesizer IsNot Nothing) Then
            _Synthesizer.Talk("This is the easiest way to synthesize.")
        End If
        _Recognizer = _TalkListen.CreateSAPI5Recognizer()
        If (_Recognizer IsNot Nothing) Then
            resultsResults = _Recognizer.Listen()
        End If
    End If