SpeechRecognitionEngine.EmulateRecognizeCompleted 事件
定義
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
SpeechRecognitionEngine 完成模擬輸入的非同步辨識作業時引發。
public:
event EventHandler<System::Speech::Recognition::EmulateRecognizeCompletedEventArgs ^> ^ EmulateRecognizeCompleted;public event EventHandler<System.Speech.Recognition.EmulateRecognizeCompletedEventArgs> EmulateRecognizeCompleted;member this.EmulateRecognizeCompleted : EventHandler<System.Speech.Recognition.EmulateRecognizeCompletedEventArgs> Public Custom Event EmulateRecognizeCompleted As EventHandler(Of EmulateRecognizeCompletedEventArgs) Public Event EmulateRecognizeCompleted As EventHandler(Of EmulateRecognizeCompletedEventArgs) 事件類型
範例
下列範例是主控台應用程式的一部分，它會載入語音辨識文法，並示範非同步模擬輸入、相關聯的辨識結果，以及語音辨識器所引發的相關聯事件。
using System;
using System.Speech.Recognition;
using System.Threading;
namespace InProcessRecognizer
{
class Program
{
// Indicate whether the asynchronous emulate recognition
// operation has completed.
static bool completed;
static void Main(string[] args)
{
// Initialize an instance of an in-process recognizer.
using (SpeechRecognitionEngine recognizer =
new SpeechRecognitionEngine(new System.Globalization.CultureInfo("en-US")))
{
// Create and load a sample grammar.
Grammar testGrammar =
new Grammar(new GrammarBuilder("testing testing"));
testGrammar.Name = "Test Grammar";
recognizer.LoadGrammar(testGrammar);
// Attach event handlers for recognition events.
recognizer.SpeechRecognized +=
new EventHandler<SpeechRecognizedEventArgs>(SpeechRecognizedHandler);
recognizer.EmulateRecognizeCompleted +=
new EventHandler<EmulateRecognizeCompletedEventArgs>(
EmulateRecognizeCompletedHandler);
completed = false;
// This EmulateRecognizeAsync call matches the grammar
// and generates a SpeechRecognized event.
recognizer.EmulateRecognizeAsync("testing testing");
// Wait for the asynchronous operation to complete.
while (!completed)
{
Thread.Sleep(333);
}
completed = false;
// This EmulateRecognizeAsync call does not match the grammar
// or generate a SpeechRecognized event.
recognizer.EmulateRecognizeAsync("testing one two three");
// Wait for the asynchronous operation to complete.
while (!completed)
{
Thread.Sleep(333);
}
}
Console.WriteLine();
Console.WriteLine("Press any key to exit...");
Console.ReadKey();
}
// Handle the SpeechRecognized event.
static void SpeechRecognizedHandler(
object sender, SpeechRecognizedEventArgs e)
{
if (e.Result != null)
{
Console.WriteLine("Result of 1st call to EmulateRecognizeAsync = {0}",
e.Result.Text ?? "<no text>");
Console.WriteLine();
}
else
{
Console.WriteLine("No recognition result");
}
}
// Handle the EmulateRecognizeCompleted event.
static void EmulateRecognizeCompletedHandler(
object sender, EmulateRecognizeCompletedEventArgs e)
{
if (e.Result == null)
{
Console.WriteLine("Result of 2nd call to EmulateRecognizeAsync = No result generated.");
}
// Indicate the asynchronous operation is complete.
completed = true;
}
}
}
備註
每個 EmulateRecognizeAsync 方法都會開始非同步辨識作業。 會在 SpeechRecognitionEngine 完成非同步作業時引發 EmulateRecognizeCompleted 事件。
作業 EmulateRecognizeAsync 可以引發 SpeechDetected 、 SpeechHypothesized 、 SpeechRecognitionRejected 和 SpeechRecognized 事件。 事件 EmulateRecognizeCompleted 是指定作業的辨識器引發的最後一個這類事件。
如果模擬的辨識成功，您可以使用下列任一項來存取辨識結果：
Result事件處理常式 EmulateRecognizeCompleted 中 物件中的 屬性 EmulateRecognizeCompletedEventArgs 。
Result SpeechRecognizedEventArgs事件處理常式 SpeechRecognized 中 物件中的 屬性。
如果模擬辨識未成功，則 SpeechRecognized 不會引發事件，而且 Result 會是 Null。
EmulateRecognizeCompletedEventArgs 衍生自 AsyncCompletedEventArgs。
SpeechRecognizedEventArgs 衍生自 RecognitionEventArgs。
當您建立 EmulateRecognizeCompleted 委派 (Delegate) 時，就可以識別即將處理此事件的方法。 若要使事件與您的事件處理常式產生關聯，請將委派的執行個體 (Instance) 加入至事件。 除非您移除委派，否則每當事件發生時就會呼叫事件處理常式。 如需事件處理常式委派的詳細資訊，請參閱 事件和委派。
