#pragma once

#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>

struct rgn;
struct msgq;
struct ax_backend;
struct ax_theme;

extern const char* ax__backend_impl_name;

int ax__backend_new(
    struct rgn* init_rgn,
    struct ax_backend** out_bac,
    const char** out_err);

struct msgq* ax__backend_msgq(struct ax_backend*);
bool ax__backend_is_shutdown(struct ax_backend*);

void ax__backend_wait_for_event(struct ax_backend*);
void ax__backend_step(struct ax_backend*);