Problem: WPF window displays after the speech is synthesized.

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this is my MainWindow.xaml.cs:

C#

using statements...
....;
namespace xyz
{
 class abc :Window
 {
  public SpeechSynthesizer qwe;
  public abc()
  {
   InitializeComponent();
   qwe = new SpeechSynthesizer();
   qwe.Speak("Hello");
  }
 }
}

The problem is that speech is synthesized before the window is diaplayed.
i want the window to load all its contents and then speak the text.
thanks for your help
regards
Ratul :-)

What I have tried:

I wasent able to get help from google ... and so now im here.

Posted 2-Jun-16 4:56am

Ratul Thakur

Updated 2-Jun-16 5:05am

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Richard Deeming · Accepted Answer · 2016-06-02T05:05:00

Don't call the Speak method until the window's Loaded event fires:

C#

public abc()
{
    InitializeComponent();
    qwe = new SpeechSynthesizer();
    Loaded += Window_Loaded;
}

private void Window_Loaded(object sender, RoutedEventArgs e)
{
    qwe.Speak("Hello");
}

If that's still too soon, use the Dispatcher:

C#

private void Window_Loaded(object sender, RoutedEventArgs e)
{
    Dispatcher.BeginInvoke((Action)() => qwe.Speak("Hello")), DispatcherPriority.ContextIdle, null);
}

Alternatively, use the SpeechSynthesizer.SpeakAsync method[^]:

C#

private void Window_Loaded(object sender, RoutedEventArgs e)
{
    qwe.SpeekAsync("Hello");
}