StateChangedEventArgs Classe

Définition

public ref class StateChangedEventArgs : EventArgs

public class StateChangedEventArgs : EventArgs

type StateChangedEventArgs = class
    inherit EventArgs

Public Class StateChangedEventArgs
Inherits EventArgs

Héritage

Object

EventArgs

StateChangedEventArgs

Exemples

L’exemple suivant illustre les informations disponibles sur l’événement StateChanged .

using System;  
using System.Speech.Synthesis;  

namespace SampleSynthesis  
{  
  class Program  
  {  

    static void Main(string[] args)  
    {  

      // Initialize a new instance of the SpeechSynthesizer.  
      using (SpeechSynthesizer synth = new SpeechSynthesizer())  
      {  

        // Configure the audio output.   
        synth.SetOutputToDefaultAudioDevice();  

        // Subscribe to StateChanged event.  
        synth.StateChanged += new EventHandler<StateChangedEventArgs>(synth_StateChanged);  

        // Subscribe to the SpeakProgress event.  
        synth.SpeakProgress += new EventHandler<SpeakProgressEventArgs>(synth_SpeakProgress);  

        // Speak the prompt.  
        synth.Speak("What is your favorite color?");  

        // Pause the SpeechSynthesizer object.  
        synth.Pause();  

        // Resume the SpeechSynthesizer object.  
        synth.Resume();  
      }  

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

    // Write the state of the SpeechSynthesizer to the console.  
    static void synth_StateChanged(object sender, StateChangedEventArgs e)  
    {  
      Console.WriteLine("State: {0}    Previous State: {1}\n", e.State, e.PreviousState);  
    }  

    // Write the speak progress of the SpeechSynthesizer to the console.  
    static void synth_SpeakProgress(object sender, SpeakProgressEventArgs e)  
    {  
      Console.WriteLine(e.Text);  
    }  
  }  
}  

Remarques

Une instance de StateChangedEventArgs est créée lorsque l’objet SpeechSynthesizer déclenche l’événementStateChanged. Pour obtenir les valeurs du nouveau et du précédent SynthesizerState, accédez aux State propriétés et PreviousState dans le gestionnaire de l’événement.

Propriétés

Méthodes

S’applique à