// Configuration
        public bool Configure(IntPtr panelHandle)
        {

            SpectrogramConfig configWindow = new SpectrogramConfig(_workingDirectory);
            configWindow.ShowDialog();


            return true;
        }
 public void configurePanel(object sender, EventArgs e)
 {
     SpectrogramConfig configWindow = new SpectrogramConfig(_workingDirectory);
     configWindow.ShowDialog();
     SaveSettings();
 }