lv_obj_bind_state_if_eq() function

Set an object state if an integer subject's value is equal to a reference value, clear the flag otherwise

Syntax

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Summary

Declaration

Definition

lv_observer_t * lv_obj_bind_state_if_eq(lv_obj_t * obj, lv_subject_t * subject, lv_state_t state, int32_t ref_value);

Argument

Description

obj

pointer to an object

subject

pointer to a subject

state

state to set or clear (e.g. `LV_STATE_CHECKED`)

ref_value

reference value to compare the subject's value with

pointer to the created observer

from examples