public MainWindow()
        {
            InitializeComponent();

            ComboBoxFormat.Text = "TEXT";

            if ((string)Properties.Settings.Default["VisionApiKey"] == string.Empty || (string)Properties.Settings.Default["TextAnalyticsApiKey"] == string.Empty)
            {
                settingWindow = new SettingWindow();
                settingWindow.ShowDialog();
            }
        }
 private void MenuItemSetting_Click(object sender, RoutedEventArgs e)
 {
     settingWindow = new SettingWindow();
     settingWindow.ShowDialog();
 }