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Bus Type

Posted on 1998-05-29
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Last Modified: 2010-05-03
How to I determine the bus type of the user's computer in Visual Basic 5.0? ie, is it ISA, EISA, VESA, PCI, etc?
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Question by:pdorman
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Expert Comment

by:Darlof
ID: 1462079
I don't have an answer to that; but, why do you care?
(No sarcasm intended, I'm really curious.)
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Expert Comment

by:yowkee
ID: 1462080
 This might be silly. Just provide for some reference. :)
 
  Enumerate all keys under HKLM\System\CurrentControlSet\Services\Class\System

Check value "InfSection" and "DevLoader" under all these keys. If InfSection = "ISA_DRV" and DevLoader = "isapnp.vxd", the machine has ISA bus. If InfSection = "PCI_DRV" and DevLoader = "pci.vxd", the machine has PCI bus. I am not sure about EISA and VESA.

 The DevLoader might be changed and I am also not sure whether it is reliable to check only value "InfSection".  

 Hope this help.
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Accepted Solution

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yowkee earned 200 total points
ID: 1462081
 Or you might use third party OCX to allow VB to access low level device. One good OCX for this purpose is WinRT 3.0 from BlueWater Systems, Inc.

Check it at
http://www.bluewatersystems.com/frames/content5.html

Note: Check the WinRT OCX property, it has a BusType property.

Regards.
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