Convert the following sample C# methods found in a sample program to C++ methods
ID: 3676390 • Letter: C
Question
Convert the following sample C# methods found in a sample program to C++ methods,
1.
static void _recognizeSpeechAndWriteToConsole_SpeechRecognitionRejected(object sender, SpeechRecognitionRejectedEventArgs e)
{
Console.WriteLine("Speech rejected. Did you mean:");
foreach (RecognizedPhrase r in e.Result.Alternates)
{
Console.WriteLine(" " + r.Text);
}
}
2.
static void _recognizeSpeechAndWriteToConsole_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)
{
if (e.Result.Text == "test")
{
Console.WriteLine("test");
}
else if (e.Result.Text == "exit")
{
manualResetEvent.Set();
}
}
3.
static void RecognizeSpeechAndWriteToConsole()
{
_recognizer = new SpeechRecognitionEngine();
_recognizer.LoadGrammar(new Grammar(new GrammarBuilder("test"))); // load a "test" grammar
_recognizer.LoadGrammar(new Grammar(new GrammarBuilder("exit"))); // load a "exit" grammar
_recognizer.SpeechRecognized += _recognizeSpeechAndWriteToConsole_SpeechRecognized; // if speech is recognized, call the specified method
_recognizer.SpeechRecognitionRejected += _recognizeSpeechAndWriteToConsole_SpeechRecognitionRejected; // if recognized speech is rejected, call the specified method
_recognizer.SetInputToDefaultAudioDevice(); // set the input to the default audio device
_recognizer.RecognizeAsync(RecognizeMode.Multiple); // recognize speech asynchronous
}
4.
static void Main(string[] args)
{
manualResetEvent = new ManualResetEvent(false);
Console.WriteLine("To recognize speech, and write 'test' to the console, press 0");
Console.WriteLine("To recognize speech and make sure the computer speaks to you, press 1");
Console.WriteLine("To emulate speech recognition, press 2");
Console.WriteLine("To recognize speech using Choices and GrammarBuilder.Append, press 3");
Console.WriteLine("To recognize speech using a DictationGrammar, press 4");
Console.WriteLine("To get a prompt building example, press 5");
ConsoleKeyInfo pressedKey = Console.ReadKey(true);
char keychar = pressedKey.KeyChar;
Console.WriteLine("You pressed '{0}'", keychar);
switch (keychar)
{
case '0':
RecognizeSpeechAndWriteToConsole();
break;
case '1':
RecognizeSpeechAndMakeSureTheComputerSpeaksToYou();
break;
case '2':
EmulateRecognize();
break;
case '3':
SpeechRecognitionWithChoices();
break;
case '4':
SpeechRecognitionWithDictationGrammar();
break;
case '5':
PromptBuilding();
break;
default:
Console.WriteLine("You didn't press 0, 1, 2, 3, 4, or 5!");
Console.WriteLine("Press any key to continue . . .");
Console.ReadKey(true);
Environment.Exit(0);
break;
}
if (keychar != '5')
{
manualResetEvent.WaitOne();
}
if (_recognizer != null)
{
_recognizer.Dispose();
}
Console.WriteLine("Press any key to continue . . .");
Console.ReadKey(true);
}
Explanation / Answer
#include<iostream.h>
#include<conio.h>
void _recognizeSpeechAndWriteToConsole_SpeechRecognitionRejected(object sender, SpeechRecognitionRejectedEventArgs e)
{
cout<<"Speech rejected. Did you mean:";
foreach (RecognizedPhrase r in e.Result.Alternates)
{
cout<<" " + r.Text;
}
}
2.
void _recognizeSpeechAndWriteToConsole_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)
{
if (e.Result.Text == "test")
{
cout<<"test";
}
else if (e.Result.Text == "exit")
{
manualResetEvent.Set();
}
}
3.
void RecognizeSpeechAndWriteToConsole()
{
_recognizer = new SpeechRecognitionEngine();
_recognizer.LoadGrammar(new Grammar(new GrammarBuilder("test"))); // load a "test" grammar
_recognizer.LoadGrammar(new Grammar(new GrammarBuilder("exit"))); // load a "exit" grammar
_recognizer.SpeechRecognized += _recognizeSpeechAndWriteToConsole_SpeechRecognized; // if speech is recognized, call the specified method
_recognizer.SpeechRecognitionRejected += _recognizeSpeechAndWriteToConsole_SpeechRecognitionRejected; // if recognized speech is rejected, call the specified method
_recognizer.SetInputToDefaultAudioDevice(); // set the input to the default audio device
_recognizer.RecognizeAsync(RecognizeMode.Multiple); // recognize speech asynchronous
}
4.
void main()
{
manualResetEvent = new ManualResetEvent(false);
cout<<"To recognize speech, and write 'test' to the console, press 0";
cout<<"To recognize speech and make sure the computer speaks to you, press 1";
cout<<"To emulate speech recognition, press 2";
cout<<"To recognize speech using Choices and GrammarBuilder.Append, press 3";
cout<<"To recognize speech using a DictationGrammar, press 4";
cout<<"To get a prompt building example, press 5";
ConsoleKeyInfo pressedKey = Console.ReadKey(true);
char keychar = pressedKey.KeyChar;
cout<<"You pressed "<< keychar);
switch (keychar)
{
case '0':
RecognizeSpeechAndWriteToConsole();
break;
case '1':
RecognizeSpeechAndMakeSureTheComputerSpeaksToYou();
break;
case '2':
EmulateRecognize();
break;
case '3':
SpeechRecognitionWithChoices();
break;
case '4':
SpeechRecognitionWithDictationGrammar();
break;
case '5':
PromptBuilding();
break;
default:
cout<<"You didn't press 0, 1, 2, 3, 4, or 5!";
cout<<"Press any key to continue . . .";
getch();
Environment.Exit(0);
break;
}
if (keychar != '5')
{
manualResetEvent.WaitOne();
}
if (_recognizer != null)
{
_recognizer.Dispose();
}
cout<<"Press any key to continue . . .";
getch();
}