lv_slider.h

Enums

enum lv_slider_mode_t

Values:

enumerator LV_SLIDER_MODE_NORMAL

enumerator LV_SLIDER_MODE_SYMMETRICAL

enumerator LV_SLIDER_MODE_RANGE

Functions

lv_obj_t *lv_slider_create(lv_obj_t *parent)

Create a slider object

Parameters:: parent – pointer to an object, it will be the parent of the new slider.
Returns:: pointer to the created slider

void lv_slider_set_value(lv_obj_t *obj, int32_t value, lv_anim_enable_t anim)

Set a new value on the slider

Parameters:

obj – pointer to a slider object
value – the new value
anim – LV_ANIM_ON: set the value with an animation; LV_ANIM_OFF: change the value immediately

void lv_slider_set_left_value(lv_obj_t *obj, int32_t value, lv_anim_enable_t anim)

Set a new value for the left knob of a slider

Parameters:

obj – pointer to a slider object
value – new value
anim – LV_ANIM_ON: set the value with an animation; LV_ANIM_OFF: change the value immediately

void lv_slider_set_range(lv_obj_t *obj, int32_t min, int32_t max)

Set minimum and the maximum values of a bar

Parameters:

obj – pointer to the slider object
min – minimum value
max – maximum value

void lv_slider_set_mode(lv_obj_t *obj, lv_slider_mode_t mode)

Set the mode of slider.

Parameters:

obj – pointer to a slider object
mode – the mode of the slider. See ::lv_slider_mode_t

int32_t lv_slider_get_value(const lv_obj_t *obj)

Get the value of the main knob of a slider

Parameters:: obj – pointer to a slider object
Returns:: the value of the main knob of the slider

int32_t lv_slider_get_left_value(const lv_obj_t *obj)

Get the value of the left knob of a slider

Parameters:: obj – pointer to a slider object
Returns:: the value of the left knob of the slider

int32_t lv_slider_get_min_value(const lv_obj_t *obj)

Get the minimum value of a slider

Parameters:: obj – pointer to a slider object
Returns:: the minimum value of the slider

int32_t lv_slider_get_max_value(const lv_obj_t *obj)

Get the maximum value of a slider

Parameters:: obj – pointer to a slider object
Returns:: the maximum value of the slider

bool lv_slider_is_dragged(const lv_obj_t *obj)

Give the slider is being dragged or not

Parameters:: obj – pointer to a slider object
Returns:: true: drag in progress false: not dragged

lv_slider_mode_t lv_slider_get_mode(lv_obj_t *slider)

Get the mode of the slider.

Parameters:: slider – pointer to a slider object
Returns:: see ::lv_slider_mode_t

bool lv_slider_is_symmetrical(lv_obj_t *obj)

Give the slider is in symmetrical mode or not

Parameters:: obj – pointer to slider object
Returns:: true: in symmetrical mode false : not in

Variables

const lv_obj_class_t lv_slider_class