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Direct port I/O under NT and w2000

Posted on 2001-08-28
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Hi, Many of the applications that I develop involve reading and writing directly to I/O port. (Usually the parallel port or an I/O card). Since my apps have always ran under Win9x its never been a problem. However, I understand that W2000/NT takes a dim view of accessing IO ports directly and since I can't stop the inevidable advance of W2000 upon my office PC and that of my target PC's, it's only a matter time before it becomes a problem.

Can someone offer any advice, code, net resources, etc on how to tackle direct port IO under NT/2000

-Thanks
/GavinS
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Question by:GavinS
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by:Bahnass
ID: 6435562
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by:anthony_glenwright
ID: 6435614
My understanding of it is that you need to write a device driver - so your best place to start is the Microsoft windows DDK...
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by:GavinS
ID: 6439264
It would appear I've succeeded in answering my own question. I found an OCX called NTport which comes with it's own NT device driver and it appears to work remarkable well.

/GavinS
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by:roverm
ID: 6440510
Take a look here:
http://www.thescarms.com/vbasic/CommIO.asp

D'Mzzl!
RoverM
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by:GavinS
ID: 6451701
Thanks roverm, but this appears to be about serial port communications. Wrong type of port :-)

I've "kind-of" finished with this question now having found "NTport" but I'm not sure what to do with the points. anthony_glenwright comments were of some assistance so unless anyone has any other suggestions I give the points to him.

/GavinS

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by:roverm
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Give the points to anthony!

D'Mzzl!
RoverM
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anthony_glenwright earned 250 total points
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I agree (-:
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Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

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