timeout for dialogs like in mes and input boxes

[stupomer]

Hi,
I thought this might have been answered before but couldn't find it.....(sorry if I missed it). Anyway, is there an easy way to add the timeout ability (countdown timer) on a user-created dialog box similar to the example below (for MES)?

MES m
m.style="YNCn"
m.x=100
m.y=1
m.timeout=15
m.default='C'
int i=mes("message" "title" m)

Thanks so much,
Stuart