Home Contents | # event:timer | Event | Core4 Lua Event System

## SYNOPSIS

1. tmr = app:timer([callback])
2. function callback(tmr) ...

## DESCRIPTION

Sets up a timer instance. A timer can be started with timer:start() and stopped with timer:stop(). The state of the timer state can be queried using timer:remaining() and timer:isActive(). When the optional callback function is given, it is called when the timer's timeout has expired, with the timer itself as a parameter.

## RETURN VALUE

A new timer instance.

## NOTES

Callbacks are called from within event:poll().

## EXAMPLE

This prints tock once a second.
> > > > > > > > > > > >
app = event.new() function tock() print("tock") end tmr = app:timer(tock) tmr:start(1000, false) while true do app:poll() end

## SEE ALSO

event:add, event:close, event.new, event:pause, event:poll, event:reset, event:shell