SpeechRecognizer.EmulateRecognizeCompleted Händelse

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) 

Händelsetyp

Exempel

Följande exempel är en del av ett konsolprogram som läser in en grammatik för taligenkänning och visar asynkrona emulerade indata, associerade igenkänningsresultat och associerade händelser som genereras av taligenkänningen. Om Windows taligenkänning inte körs startas även Windows taligenkänning om du startar det här programmet. Om Windows taligenkänning är i läget Sleeping returnerar EmulateRecognizeAsync alltid null.

using System;
using System.Speech.Recognition;
using System.Threading;

namespace SharedRecognizer
{
  class Program
  {
    // Indicate whether the asynchronous emulate recognition
    // operation has completed.
    static bool completed;

    static void Main(string[] args)
    {

      // Initialize an instance of the shared recognizer.
      using (SpeechRecognizer recognizer = new SpeechRecognizer())
      {
        // 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 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("Recognition result = {0}",
          e.Result.Text ?? "<no text>");
      }
      else
      {
        Console.WriteLine("No recognition result");
      }
    }

    // Handle the EmulateRecognizeCompleted event.
    static void EmulateRecognizeCompletedHandler(
      object sender, EmulateRecognizeCompletedEventArgs e)
    {
      if (e.Result == null)
      {
        Console.WriteLine("No result generated.");
      }

      // Indicate the asynchronous operation is complete.
      completed = true;
    }
  }
}

Kommentarer

Varje EmulateRecognizeAsync metod påbörjar en asynkron igenkänningsåtgärd. Identifieraren EmulateRecognizeCompleted genererar händelsen när den slutför den asynkrona åtgärden.

Den asynkrona igenkänningsåtgärden SpeechDetectedkan generera händelserna , SpeechHypothesized, SpeechRecognitionRejectedoch SpeechRecognized . Händelsen EmulateRecognizeCompleted är den sista händelsen som identifieraren genererar för en viss åtgärd.

När du skapar ett ombud för en EmulateRecognizeCompleted händelse identifierar du vilken metod som ska hantera händelsen. Om du vill associera händelsen med händelsehanteraren lägger du till en instans av ombudet till händelsen. Händelsehanteraren anropas när händelsen inträffar, såvida du inte tar bort ombudet. Mer information om ombud för händelsehanterare finns i Händelser och ombud.

Se även

• EmulateRecognizeCompletedEventArgs
• EmulateRecognizeAsync(String)
• SpeechDetected
• SpeechHypothesized
• SpeechRecognitionRejected
• SpeechRecognized