SpeechRecognitionEngine.UnloadAllGrammars Méthode

  • Référence

Définition

Espace de noms:
System.Speech.Recognition
Assembly:
System.Speech.dll
Paquet:
System.Speech v9.0.0
Source:
SpeechRecognitionEngine.cs
Source:
SpeechRecognitionEngine.cs
Source:
SpeechRecognitionEngine.cs

Décharge tous les objets Grammar du module de reconnaissance.

public:
 void UnloadAllGrammars();
public void UnloadAllGrammars ();
member this.UnloadAllGrammars : unit -> unit
Public Sub UnloadAllGrammars ()

Exemples

L’exemple suivant montre une partie d’une application console qui illustre le chargement et le déchargement synchrones des grammaires de reconnaissance vocale.

Loading grammars...  
Loaded grammars:  
 - Grammar1  
 - Grammar2  
 - Grammar3  

Unloading Grammar1...  
Loaded grammars:  
 - Grammar2  
 - Grammar3  

Unloading all grammars...  
No grammars loaded.  

Press any key to exit...  

using System;  
using System.Collections.Generic;  
using System.Globalization;  
using System.Speech.Recognition;  

namespace UnloadGrammars  
{  
  class Program  
  {  
    static void Main(string[] args)  
    {  
      using (SpeechRecognitionEngine recognizer =  
        new SpeechRecognitionEngine(new CultureInfo("en-US")))  
      {  
        Console.WriteLine("Loading grammars...");  

        // Create and load a number of grammars.  
        Grammar grammar1 = new Grammar(new GrammarBuilder("first grammar"));  
        grammar1.Name = "Grammar1";  
        recognizer.LoadGrammar(grammar1);  

        Grammar grammar2 = new Grammar(new GrammarBuilder("second grammar"));  
        grammar2.Name = "Grammar2";  
        recognizer.LoadGrammar(grammar2);  

        Grammar grammar3 = new Grammar(new GrammarBuilder("third grammar"));  
        grammar3.Name = "Grammar3";  
        recognizer.LoadGrammar(grammar3);  

        // List the recognizer's loaded grammars.  
        ListGrammars(recognizer);  

        // Unload one grammar and list the loaded grammars.  
        Console.WriteLine("Unloading Grammar1...");  
        recognizer.UnloadGrammar(grammar1);  
        ListGrammars(recognizer);  

        // Unload all grammars and list the loaded grammars.  
        Console.WriteLine("Unloading all grammars...");  
        recognizer.UnloadAllGrammars();  
        ListGrammars(recognizer);  
      }  

      Console.WriteLine("Press any key to exit...");  
      Console.ReadKey();  
    }  

    private static void ListGrammars(SpeechRecognitionEngine recognizer)  
    {  
      // Make a copy of the recognizer's grammar collection.  
      List<Grammar> loadedGrammars = new List<Grammar>(recognizer.Grammars);  

      if (loadedGrammars.Count > 0)  
      {  
        Console.WriteLine("Loaded grammars:");  
        foreach (Grammar g in recognizer.Grammars)  
        {  
          Console.WriteLine(" - {0}", g.Name);  
        }  
      }  
      else  
      {  
        Console.WriteLine("No grammars loaded.");  
      }  
      Console.WriteLine();  
    }  
  }  
}

Remarques

Si le module de reconnaissance charge actuellement un Grammar de manière asynchrone, cette méthode attend que le Grammar soit chargé, avant de Grammar décharger tous les objets de l’instance SpeechRecognitionEngine .

Pour décharger une grammaire spécifique, utilisez la UnloadGrammar méthode .

S’applique à

Voir aussi