---
name: "al_wait_for_event_until"
section: "3alleg5"
platform: "linux"
package: "allegro5-doc"
version: "2:5.2.10.1+dfsg-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/al_wait_for_event_until/3alleg5"
---

# al\_wait\_for\_event\_until(3alleg5)

Allegro 5 API

## NAME

al\_wait\_for\_event\_until - Allegro 5 API

## SYNOPSIS

-

  ```
  #include <allegro5/allegro.h>
  bool al_wait_for_event_until(ALLEGRO_EVENT_QUEUE *queue,
     ALLEGRO_EVENT *ret_event, ALLEGRO_TIMEOUT *timeout)
  ```

## DESCRIPTION

Wait until the event queue specified is non-empty. If `ret_event` is not NULL, the first event in the queue will be copied into `ret_event` and removed from the queue. If `ret_event` is NULL the first event is left at the head of the queue.

`timeout` determines how long to wait. If the call times out, false is returned. Otherwise, if an event ocurred, true is returned.

For compatibility with all platforms, `timeout` must be 2,147,483.647 seconds or less.

## SEE ALSO

ALLEGRO\_EVENT(3alleg5), ALLEGRO\_TIMEOUT(3alleg5), al\_init\_timeout(3alleg5), al\_wait\_for\_event(3alleg5), al\_wait\_for\_event\_timed(3alleg5)