private void CommandBinding_PreferencesCmdExecuted(object sender, System.Windows.Input.ExecutedRoutedEventArgs e) { PreferencesDialog dlg = new PreferencesDialog(); if (dlg.ShowDialog() == true) { this.ogreControl.FrameRate = MogitorSettings.Instance.UseWpfDisplaySurface? (int?)null : MogitorSettings.Instance.FrameRate; } }