# lv_font_manager.h (/api/font/font_manager/lv_font_manager_h)



<ApiSummary functions="7" />

Functions [#functions]

<ApiMember kind="function" name="lv_font_manager_create" file="font/font_manager/lv_font_manager.h" line="37" url="https://github.com/lvgl/lvgl/tree/a7b95c5b0839ce901c09c205610bc2c77cc3345d/src/font/font_manager/lv_font_manager.h#L37">
  lv_font_manager_create [#lv_font_manager_create]

  Create main font manager.

  ```c title=" " lineNumbers=1
  lv_font_manager_t * lv_font_manager_create(uint32_t recycle_cache_size)
  ```

  <span className="sr-only">
    Parameters
  </span>

  | Name                 | Type                        | Description                                                |
  | -------------------- | --------------------------- | ---------------------------------------------------------- |
  | `recycle_cache_size` | <ApiLink name="uint32_t" /> | number of fonts that were recently deleted from the cache. |

  **Returns:** <ApiLink name="lv_font_manager_t" display="lv_font_manager_t *" /> — pointer to main font manager.
</ApiMember>

<ApiMember kind="function" name="lv_font_manager_delete" file="font/font_manager/lv_font_manager.h" line="44" url="https://github.com/lvgl/lvgl/tree/a7b95c5b0839ce901c09c205610bc2c77cc3345d/src/font/font_manager/lv_font_manager.h#L44">
  lv_font_manager_delete [#lv_font_manager_delete]

  Delete main font manager.

  ```c title=" " lineNumbers=1
  bool lv_font_manager_delete(lv_font_manager_t *manager)
  ```

  <span className="sr-only">
    Parameters
  </span>

  | Name      | Type                                                               | Description                   |
  | --------- | ------------------------------------------------------------------ | ----------------------------- |
  | `manager` | <ApiLink name="lv_font_manager_t" display="lv_font_manager_t *" /> | pointer to main font manager. |

  **Returns:** <ApiLink name="bool" /> — return true if the deletion was successful.
</ApiMember>

<ApiMember kind="function" name="lv_font_manager_add_src" file="font/font_manager/lv_font_manager.h" line="54" url="https://github.com/lvgl/lvgl/tree/a7b95c5b0839ce901c09c205610bc2c77cc3345d/src/font/font_manager/lv_font_manager.h#L54">
  lv_font_manager_add_src [#lv_font_manager_add_src]

  Add font resource.

  ```c title=" " lineNumbers=1
  bool lv_font_manager_add_src(lv_font_manager_t *manager, const char *name, const void *src, const lv_font_class_t *class_p)
  ```

  <span className="sr-only">
    Parameters
  </span>

  | Name      | Type                                                                 | Description                                                          |
  | --------- | -------------------------------------------------------------------- | -------------------------------------------------------------------- |
  | `manager` | <ApiLink name="lv_font_manager_t" display="lv_font_manager_t *" />   | pointer to main font manager.                                        |
  | `name`    | `const char *`                                                       | font name.                                                           |
  | `src`     | `const void *`                                                       | font source. Need to strictly correspond to the font class.          |
  | `class_p` | <ApiLink name="lv_font_class_t" display="const lv_font_class_t *" /> | font class. eg. lv\_freetype\_font\_class, lv\_builtin\_font\_class. |

  **Returns:** <ApiLink name="bool" /> — return true if the add was successful.
</ApiMember>

<ApiMember kind="function" name="lv_font_manager_add_src_static" file="font/font_manager/lv_font_manager.h" line="67" url="https://github.com/lvgl/lvgl/tree/a7b95c5b0839ce901c09c205610bc2c77cc3345d/src/font/font_manager/lv_font_manager.h#L67">
  lv_font_manager_add_src_static [#lv_font_manager_add_src_static]

  Add font resource with static memory.

  ```c title=" " lineNumbers=1
  bool lv_font_manager_add_src_static(lv_font_manager_t *manager, const char *name, const void *src, const lv_font_class_t *class_p)
  ```

  <span className="sr-only">
    Parameters
  </span>

  | Name      | Type                                                                 | Description                                                                                    |
  | --------- | -------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------- |
  | `manager` | <ApiLink name="lv_font_manager_t" display="lv_font_manager_t *" />   | pointer to main font manager.                                                                  |
  | `name`    | `const char *`                                                       | font name. It cannot be a local variable.                                                      |
  | `src`     | `const void *`                                                       | font source. Need to strictly correspond to the font class. And it cannot be a local variable. |
  | `class_p` | <ApiLink name="lv_font_class_t" display="const lv_font_class_t *" /> | font class. E.g. lv\_freetype\_font\_class, lv\_builtin\_font\_class.                          |

  **Returns:** <ApiLink name="bool" /> — return true if the add was successful.
</ApiMember>

<ApiMember kind="function" name="lv_font_manager_remove_src" file="font/font_manager/lv_font_manager.h" line="78" url="https://github.com/lvgl/lvgl/tree/a7b95c5b0839ce901c09c205610bc2c77cc3345d/src/font/font_manager/lv_font_manager.h#L78">
  lv_font_manager_remove_src [#lv_font_manager_remove_src]

  Remove font resource.

  ```c title=" " lineNumbers=1
  bool lv_font_manager_remove_src(lv_font_manager_t *manager, const char *name)
  ```

  <span className="sr-only">
    Parameters
  </span>

  | Name      | Type                                                               | Description                   |
  | --------- | ------------------------------------------------------------------ | ----------------------------- |
  | `manager` | <ApiLink name="lv_font_manager_t" display="lv_font_manager_t *" /> | pointer to main font manager. |
  | `name`    | `const char *`                                                     | font name.                    |

  **Returns:** <ApiLink name="bool" /> — return true if the remove was successful.
</ApiMember>

<ApiMember kind="function" name="lv_font_manager_create_font" file="font/font_manager/lv_font_manager.h" line="90" url="https://github.com/lvgl/lvgl/tree/a7b95c5b0839ce901c09c205610bc2c77cc3345d/src/font/font_manager/lv_font_manager.h#L90">
  lv_font_manager_create_font [#lv_font_manager_create_font]

  Create font.

  ```c title=" " lineNumbers=1
  lv_font_t * lv_font_manager_create_font(lv_font_manager_t *manager, const char *font_family, uint32_t render_mode, uint32_t size, uint32_t style, lv_font_kerning_t kerning)
  ```

  <span className="sr-only">
    Parameters
  </span>

  | Name          | Type                                                               | Description                                                                                                                 |
  | ------------- | ------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------------------- |
  | `manager`     | <ApiLink name="lv_font_manager_t" display="lv_font_manager_t *" /> | pointer to main font manager.                                                                                               |
  | `font_family` | `const char *`                                                     | font family name. Matches the font resource name, using commas to separate different names. E.g. "my\_font\_1,my\_font\_2". |
  | `render_mode` | <ApiLink name="uint32_t" />                                        | font render mode. see `lv_freetype_font_render_mode_t`.                                                                     |
  | `size`        | <ApiLink name="uint32_t" />                                        | font size in pixel.                                                                                                         |
  | `style`       | <ApiLink name="uint32_t" />                                        | font style. see `lv_freetype_font_style_t`.                                                                                 |
  | `kerning`     | <ApiLink name="lv_font_kerning_t" />                               | kerning mode. see `lv_font_kerning_t`.                                                                                      |

  **Returns:** <ApiLink name="lv_font_t" display="lv_font_t *" /> — point to the created font.
</ApiMember>

<ApiMember kind="function" name="lv_font_manager_delete_font" file="font/font_manager/lv_font_manager.h" line="103" url="https://github.com/lvgl/lvgl/tree/a7b95c5b0839ce901c09c205610bc2c77cc3345d/src/font/font_manager/lv_font_manager.h#L103">
  lv_font_manager_delete_font [#lv_font_manager_delete_font]

  Delete font.

  ```c title=" " lineNumbers=1
  void lv_font_manager_delete_font(lv_font_manager_t *manager, lv_font_t *font)
  ```

  <span className="sr-only">
    Parameters
  </span>

  | Name      | Type                                                               | Description                   |
  | --------- | ------------------------------------------------------------------ | ----------------------------- |
  | `manager` | <ApiLink name="lv_font_manager_t" display="lv_font_manager_t *" /> | pointer to main font manager. |
  | `font`    | <ApiLink name="lv_font_t" display="lv_font_t *" />                 | point to the font.            |
</ApiMember>

Dependencies [#dependencies]

<FileIncludes includes="[&#x22;lv_font.h&#x22;]" transitiveIncludes="[&#x22;lv_area.h&#x22;, &#x22;lv_assert.h&#x22;, &#x22;lv_color.h&#x22;, &#x22;lv_color_op.h&#x22;, &#x22;lv_conf_internal.h&#x22;, &#x22;lv_conf_kconfig.h&#x22;, &#x22;lv_draw_buf.h&#x22;, &#x22;lv_image_dsc.h&#x22;, &#x22;lv_log.h&#x22;, &#x22;lv_math.h&#x22;, &#x22;lv_mem.h&#x22;, &#x22;lv_palette.h&#x22;, &#x22;lv_string.h&#x22;, &#x22;lv_symbol_def.h&#x22;, &#x22;lv_types.h&#x22;]" />