58    QGroupBox* d_trace_box;
 
   59    QVBoxLayout* d_trace_layout;
 
   60    QCheckBox* d_maxhold_check;
 
   61    QCheckBox* d_minhold_check;
 
   63    QHBoxLayout* d_avg_layout;
 
   65    QSlider* d_avg_slider;
 
   67    QGroupBox* d_axes_box;
 
   68    QVBoxLayout* d_axes_layout;
 
   70    QCheckBox* d_grid_check;
 
   71    QCheckBox* d_axislabels_check;
 
   72    QHBoxLayout* d_yrange_layout;
 
   73    QLabel* d_yrange_label;
 
   74    QPushButton* d_yrange_plus;
 
   75    QPushButton* d_yrange_minus;
 
   77    QHBoxLayout* d_ymin_layout;
 
   79    QPushButton* d_ymin_plus;
 
   80    QPushButton* d_ymin_minus;
 
   82    QPushButton* d_autoscale_button;
 
   85    QVBoxLayout* d_fft_layout;
 
   86    QComboBox* d_fft_size_combo;
 
   87    QComboBox* d_fft_win_combo;
 
   89    int d_slider_max, d_slider_min, d_slider_step;
 
   91    QGroupBox* d_trigger_box;
 
   92    QVBoxLayout* d_trigger_layout;
 
   93    QHBoxLayout* d_trigger_level_layout;
 
   94    QLabel* d_trigger_level_label;
 
   95    QComboBox* d_trigger_mode_combo;
 
   96    QPushButton *d_trigger_level_plus, *d_trigger_level_minus;
 
   98    QGroupBox* d_extras_box;
 
   99    QVBoxLayout* d_extras_layout;
 
  100    QPushButton* d_stop_button;