ev_count(3event)
ev_count --
returns the number of events currently 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>
int ev_count()
Description
ev_count
Returns the number of events currently in the queue.
An event queue must have been opened with ev_init and
ev_open.
Return values
ev_count
returns -1 if there is not an open event queue.
References
ev_block(3event),
ev_close(3event),
ev_flush(3event),
ev_getdev(3event),
ev_getemask(3event),
ev_gindev(3event),
ev_init(3event),
ev_open(3event),
ev_pop(3event),
ev_read(3event),
ev_resume(3event),
ev_setemask(3event),
ev_suspend(3event)
Standards conformance
ev_count 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