Hi,
I was very interested looking for possible answers to your question - no feedback from other people - o.k.
I think, that I have some experience with LabVIEW and
the use of printerport on different operating systems (Win9x,WinNT,W2k). But I would solve your problem with
polling of that "filtered" bit on printerport. If some- body has a better idea - let me know. If you have questions about interfacing @ printerport - please write to: werner.hasche@web.de
Regards
wha