ev_read(3event)
ev_read --
read the next event in the queue
Synopsis
cc . . . -levent
#include <sys/types.h>
#include <sys/param.h>
#include <sys/sysmacros.h>
#include <sys/page.h>
#include <sys/event.h>
#include <mouse.h>
EVENT* ev_read ()
Description
ev_read
returns a pointer to the next event in the queue or NULL if the
queue is empty. Multiple calls to this routine return the same pointer
until ev_pop is called.
An error occurs if this routine is called from a program without
an open event queue.
Return values
This routine returns NULL if there is no event to read
or if there is not an open event queue.
References
ev_block(3event),
ev_close(3event),
ev_count(3event),
ev_flush(3event),
ev_getdev(3event),
ev_getemask(3event),
ev_gindev(3event),
ev_init(3event),
ev_open(3event),
ev_pop(3event),
ev_resume(3event),
ev_setemask(3event),
ev_suspend(3event)
Standards conformance
ev_read is not part of any currently supported standard;
it is an extension of AT&T System V provided by the Santa Cruz Operation.
© 2004 The SCO Group, Inc. All rights reserved.
UnixWare 7 Release 7.1.4 - 25 April 2004