4 static lv_obj_t  * panel;  variable
19            lv_obj_get_scroll_x(panel),  in scroll_update_cb()
20            lv_obj_get_scroll_y(panel),  in scroll_update_cb()
21            lv_obj_get_scroll_top(panel),  in scroll_update_cb()
22            lv_obj_get_scroll_bottom(panel),  in scroll_update_cb()
23            lv_obj_get_scroll_left(panel),  in scroll_update_cb()
24            lv_obj_get_scroll_right(panel)  in scroll_update_cb()
33         saved_scroll_x = lv_obj_get_scroll_x(panel);  in button_event_cb()
34         saved_scroll_y = lv_obj_get_scroll_y(panel);  in button_event_cb()
37         lv_obj_scroll_to(panel, saved_scroll_x, saved_scroll_y, LV_ANIM_ON);  in button_event_cb()
49     panel = lv_obj_create(scr);  in lv_example_scroll_1()
50     lv_obj_set_size(panel, 200, 200);  in lv_example_scroll_1()
51     lv_obj_align(panel, LV_ALIGN_CENTER, 44, 0);  in lv_example_scroll_1()
56     child = lv_obj_create(panel);  in lv_example_scroll_1()
63     child = lv_obj_create(panel);  in lv_example_scroll_1()
74     child = lv_obj_create(panel);  in lv_example_scroll_1()
85     lv_obj_add_event_cb(panel, scroll_update_cb, LV_EVENT_SCROLL, NULL);  in lv_example_scroll_1()
95     lv_obj_align_to(save_button, panel, LV_ALIGN_OUT_LEFT_MID, -10, -20);  in lv_example_scroll_1()
96     lv_obj_align_to(restore_button, panel, LV_ALIGN_OUT_LEFT_MID, -10, 20);  in lv_example_scroll_1()