// Speaks the content of a standalone SSML file.
private async void SpeakSsmlFromFile_Click(object sender, RoutedEventArgs e)
{
try // error handling
{
// Disable the ListBoxes to prevent exceptions
VoicesListBox.IsEnabled = false;
LanguagesListBox.IsEnabled = false;
// Stop playing any Synthesized speech
_speechSynthesizer.CancelAll();
// Set the path to the SSML-compliant XML file.
string path = Package.Current.InstalledLocation.Path + "\\SSMLExample.xml";
Uri fileToRead = new Uri(path, UriKind.Absolute);
// Speak the SSML prompt.
await _speechSynthesizer.SpeakSsmlFromUriAsync(fileToRead);
MessageBox.Show("SSML file read.");
// Re-enable the ListBoxes
VoicesListBox.IsEnabled = true;
LanguagesListBox.IsEnabled = true;
}
catch (Exception ex) // Catch exception and call function to handle it.
{
HandleSpeechSynthesisError(ex);
}
}