# lv_arc_private.h (/api/private/widgets/arc/lv_arc_private_h)



<RelatedHeaders name="lv_arc.h" isPrivate="true" />

<ApiSummary structs="1" />

Structs [#structs]

<ApiMember kind="struct" name="_lv_arc_t">
  \_lv_arc_t [#_lv_arc_t]

  | Member              | Type                                  | Description                                                         |
  | ------------------- | ------------------------------------- | ------------------------------------------------------------------- |
  | `obj`               | <ApiLink name="lv_obj_t" />           |                                                                     |
  | `rotation`          | `int32_t`                             |                                                                     |
  | `indic_angle_start` | <ApiLink name="lv_value_precise_t" /> |                                                                     |
  | `indic_angle_end`   | <ApiLink name="lv_value_precise_t" /> |                                                                     |
  | `bg_angle_start`    | <ApiLink name="lv_value_precise_t" /> |                                                                     |
  | `bg_angle_end`      | <ApiLink name="lv_value_precise_t" /> |                                                                     |
  | `value`             | `int32_t`                             | Current value of the arc                                            |
  | `min_value`         | `int32_t`                             | Minimum value of the arc                                            |
  | `max_value`         | `int32_t`                             | Maximum value of the arc                                            |
  | `dragging`          | `uint32_t`                            |                                                                     |
  | `type`              | `uint32_t`                            |                                                                     |
  | `min_close`         | `uint32_t`                            | 1: the last pressed angle was closer to minimum end                 |
  | `in_out`            | `uint32_t`                            | 1: The click was within the background arc angles. 0: Click outside |
  | `chg_rate`          | `uint32_t`                            | Drag angle rate of change of the arc (degrees/sec)                  |
  | `last_tick`         | `uint32_t`                            | Last dragging event timestamp of the arc                            |
  | `last_angle`        | <ApiLink name="lv_value_precise_t" /> | Last dragging angle of the arc                                      |
  | `knob_offset`       | `int16_t`                             | knob offset from the main arc                                       |
</ApiMember>

Dependencies [#dependencies]

<FileIncludes includes="[&#x22;lv_obj_private.h&#x22;, &#x22;lvgl_public.h&#x22;]" includedBy="[&#x22;lvgl_private.h&#x22;, &#x22;lv_spinner_private.h&#x22;]" transitiveIncludes="[&#x22;lv_array.h&#x22;, &#x22;lv_event_private.h&#x22;]" />