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.TH "al_wait_for_event_until" "3" "" "Allegro reference manual"
.SH NAME
al_wait_for_event_until \- Allegro 5 API
.SH SYNOPSIS
.IP
.EX
#include \f[B]<allegro5/allegro.h>\f[R]

bool al_wait_for_event_until(ALLEGRO_EVENT_QUEUE *queue,
   ALLEGRO_EVENT *ret_event, ALLEGRO_TIMEOUT *timeout)
.EE
.SH DESCRIPTION
Wait until the event queue specified is non\-empty.
If \f[CR]ret_event\f[R] is not NULL, the first event in the queue will
be copied into \f[CR]ret_event\f[R] and removed from the queue.
If \f[CR]ret_event\f[R] is NULL the first event is left at the head of
the queue.
.PP
\f[CR]timeout\f[R] determines how long to wait.
If the call times out, false is returned.
Otherwise, if an event ocurred, true is returned.
.PP
For compatibility with all platforms, \f[CR]timeout\f[R] must be
2,147,483.647 seconds or less.
.SH SEE ALSO
ALLEGRO_EVENT(3), ALLEGRO_TIMEOUT(3), al_init_timeout(3),
al_wait_for_event(3), al_wait_for_event_timed(3)