# lv_ext_data.h (/api/misc/lv_ext_data_h)



<ApiSummary structs="1" />

Structs [#structs]

<ApiMember kind="struct" name="lv_ext_data_t">
  lv_ext_data_t [#lv_ext_data_t]

  | Member    | Type                  | Description |
  | --------- | --------------------- | ----------- |
  | `data`    | `void *`              |             |
  | `free_cb` | `void(*)(void *data)` |             |
</ApiMember>

Dependencies [#dependencies]

<FileIncludes includes="[&#x22;lv_conf_internal.h&#x22;]" includedBy="[&#x22;lv_group_private.h&#x22;, &#x22;lv_obj_private.h&#x22;, &#x22;lv_observer.h&#x22;, &#x22;lv_display_private.h&#x22;, &#x22;lv_indev_private.h&#x22;, &#x22;lv_anim.h&#x22;, &#x22;lv_event_private.h&#x22;, &#x22;lv_timer_private.h&#x22;, &#x22;lv_theme_private.h&#x22;]" transitiveIncludes="[&#x22;lv_conf_kconfig.h&#x22;]" />