# lv_barcode.h (/api/libs/barcode/lv_barcode_h)
Functions [#functions]
lv_barcode_set_dark_color [#lv_barcode_set_dark_color]
Set the dark color of a barcode object
```c title=" " lineNumbers=1
void lv_barcode_set_dark_color(lv_obj_t *obj, lv_color_t color)
```
Parameters
| Name | Type | Description |
| ------- | ------------------------------------------------ | ------------------------- |
| `obj` | | pointer to barcode object |
| `color` | | dark color of the barcode |
lv_barcode_set_light_color [#lv_barcode_set_light_color]
Set the light color of a barcode object
```c title=" " lineNumbers=1
void lv_barcode_set_light_color(lv_obj_t *obj, lv_color_t color)
```
Parameters
| Name | Type | Description |
| ------- | ------------------------------------------------ | -------------------------- |
| `obj` | | pointer to barcode object |
| `color` | | light color of the barcode |
lv_barcode_set_scale [#lv_barcode_set_scale]
Set the scale of a barcode object
```c title=" " lineNumbers=1
void lv_barcode_set_scale(lv_obj_t *obj, uint16_t scale)
```
Parameters
| Name | Type | Description |
| ------- | ------------------------------------------------ | ------------------------- |
| `obj` | | pointer to barcode object |
| `scale` | | scale factor |
lv_barcode_set_direction [#lv_barcode_set_direction]
Set the direction of a barcode object
```c title=" " lineNumbers=1
void lv_barcode_set_direction(lv_obj_t *obj, lv_dir_t direction)
```
Parameters
| Name | Type | Description |
| ----------- | ------------------------------------------------ | --------------------------------------------- |
| `obj` | | pointer to barcode object |
| `direction` | | draw direction (`LV_DIR_HOR` or `LB_DIR_VER`) |
lv_barcode_set_tiled [#lv_barcode_set_tiled]
Set the tiled mode of a barcode object
```c title=" " lineNumbers=1
void lv_barcode_set_tiled(lv_obj_t *obj, bool tiled)
```
Parameters
| Name | Type | Description |
| ------- | ------------------------------------------------ | ---------------------------------------------- |
| `obj` | | pointer to barcode object |
| `tiled` | | true: tiled mode, false: normal mode (default) |
lv_barcode_set_encoding [#lv_barcode_set_encoding]
Set the encoding of a barcode object
```c title=" " lineNumbers=1
void lv_barcode_set_encoding(lv_obj_t *obj, lv_barcode_encoding_t encoding)
```
Parameters
| Name | Type | Description |
| ---------- | ------------------------------------------------ | ---------------------------------------------- |
| `obj` | | pointer to barcode object |
| `encoding` | | encoding (default is `LV_BARCODE_CODE128_GS1`) |
lv_barcode_get_dark_color [#lv_barcode_get_dark_color]
Get the dark color of a barcode object
```c title=" " lineNumbers=1
lv_color_t lv_barcode_get_dark_color(lv_obj_t *obj)
```
Parameters
| Name | Type | Description |
| ----- | ------------------------------------------------ | ------------------------- |
| `obj` | | pointer to barcode object |
**Returns:** — dark color of the barcode
lv_barcode_get_light_color [#lv_barcode_get_light_color]
Get the light color of a barcode object
```c title=" " lineNumbers=1
lv_color_t lv_barcode_get_light_color(lv_obj_t *obj)
```
Parameters
| Name | Type | Description |
| ----- | ------------------------------------------------ | ------------------------- |
| `obj` | | pointer to barcode object |
**Returns:** — light color of the barcode
lv_barcode_get_scale [#lv_barcode_get_scale]
Get the scale of a barcode object
```c title=" " lineNumbers=1
uint16_t lv_barcode_get_scale(lv_obj_t *obj)
```
Parameters
| Name | Type | Description |
| ----- | ------------------------------------------------ | ------------------------- |
| `obj` | | pointer to barcode object |
**Returns:** — scale factor
lv_barcode_get_encoding [#lv_barcode_get_encoding]
Get the encoding of a barcode object
```c title=" " lineNumbers=1
lv_barcode_encoding_t lv_barcode_get_encoding(const lv_obj_t *obj)
```
Parameters
| Name | Type | Description |
| ----- | ------------------------------------------------------ | ------------------------- |
| `obj` | | pointer to barcode object |
**Returns:** — encoding
lv_barcode_create [#lv_barcode_create]
Create an empty barcode (an `lv_canvas`) object.
```c title=" " lineNumbers=1
lv_obj_t * lv_barcode_create(lv_obj_t *parent)
```
Parameters
| Name | Type | Description |
| -------- | ------------------------------------------------ | ---------------------------------------------- |
| `parent` | | point to an object where to create the barcode |
**Returns:** — pointer to the created barcode object
lv_barcode_update [#lv_barcode_update]
Set the data of a barcode object
```c title=" " lineNumbers=1
lv_result_t lv_barcode_update(lv_obj_t *obj, const char *data)
```
Parameters
| Name | Type | Description |
| ------ | ------------------------------------------------ | ------------------------- |
| `obj` | | pointer to barcode object |
| `data` | `const char *` | data to display |
**Returns:** — LV\_RESULT\_OK: if no error; LV\_RESULT\_INVALID: on error
Enums [#enums]
lv_barcode_encoding_t [#lv_barcode_encoding_t]
| Name | Description |
| --------------------------------- | ------------------------------------------------------- |
| `LV_BARCODE_ENCODING_CODE128_GS1` | Code 128 with GS1 encoding. Strips `[FCN1]` and spaces. |
| `LV_BARCODE_ENCODING_CODE128_RAW` | Code 128 with raw encoding. |
* `lv_barcode_set_encoding` — param `encoding`
Variables [#variables]
lv_barcode_class [#lv_barcode_class]
```c title=" " lineNumbers=1
const lv_obj_class_t lv_barcode_class
```
Dependencies [#dependencies]