Ok, I figured it out:
julia> wf = watch_file((fn, ev, st) -> begin
println("File Name : " *string(fn))
println("Event : " *string(ev))
println("Status : " *string(st))
end,
"c:\\Bits\\watch.txt")
FileMonitor(Ptr{Void} @0x0000000005d40e50,(anonymous
function),false,Condition({
}))
julia> File Name : watch.txt
Event : FileEvent(false,true,false)
Status : 0
File Name : watch.txt
Event : FileEvent(false,true,false)
Status : 0
File Name : watch.txt
Event : FileEvent(false,true,false)
Status : 0
julia> methodswith(typeof(wf))
2-element Array{Method,1}:
wait(m::FileMonitor) at poll.jl:231
close(t::FileMonitor) at poll.jl:22
julia> close(wf)
Et voila!