ev_count(S) — OpenDesktop Software Development System 3.0.0


 ev_count(S)                    6 January 1993                    ev_count(S)


 Name

    ev_count - returns the number of events currently in the queue

 Syntax


    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

    evcount Returns the number of events currently in the queue.  An event
    queue must have been opened with evinit and evopen.

 Diagnostics

    evcount returns -1 if there is not an open event queue.

 See also

    evblock(S), evclose(S), evflush(S), evgetdev(S), evgetemask(S),
    evgindev(S), evinit(S), evopen(S), evpop(S), evread(S),
    evresume(S), evsetemask(S), evsuspend(S)

 Standards conformance

    evcount is not part of any currently supported standard; it is an exten-
    sion of AT&T System V provided by the Santa Cruz Operation.
Museum
