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

enum lv_slider_orientation_t

Values:

enumerator LV_SLIDER_ORIENTATION_AUTO

enumerator LV_SLIDER_ORIENTATION_HORIZONTAL

enumerator LV_SLIDER_ORIENTATION_VERTICAL

Values:

enumerator LV_PROPERTY_SLIDER_VALUE

enumerator LV_PROPERTY_SLIDER_LEFT_VALUE

enumerator LV_PROPERTY_SLIDER_RANGE

enumerator LV_PROPERTY_SLIDER_MIN_VALUE

enumerator LV_PROPERTY_SLIDER_MAX_VALUE

enumerator LV_PROPERTY_SLIDER_MODE

enumerator LV_PROPERTY_SLIDER_IS_DRAGGED

enumerator LV_PROPERTY_SLIDER_IS_SYMMETRICAL

enumerator LV_PROPERTY_SLIDER_END

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_start_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

void lv_slider_set_orientation(lv_obj_t *obj, lv_slider_orientation_t orientation)

Set the orientation of slider.

Parameters:

• obj – pointer to a slider object

• orientation – slider orientation from lv_slider_orientation_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

lv_slider_orientation_t lv_slider_get_orientation(lv_obj_t *slider)

Get the orientation of slider.

Parameters:

obj – pointer to a slider object

Returns:

slider orientation from lv_slider_orientation_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