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In windows XP you don't have direct access to ports.
You must write own kernel mode driver that can interfacing directly to ports or use this h**p://www.beyondlogic.org/porttalk/porttalk.htm - this kernel driver allow windows application read/write direct to any port.
i has tryed that but it is not work. Can you give me a snippet program in c++ to use porttalk. i has installed it on c:\windows\system32\drivers directory and i has run ollawio.exe. thanks.
to get direct acces on XP, Try UserPort by Tomas Franzon based on an article written by Dale Roberts 8/30/95, published in May 96 Dr
Dobbs Journal, see www.ddj.com.
My VB program under XP & Win2K which controlling my water heaters & lighting is working well under the activex/IO dll above.
Oh ya... please check whether your computer's parallel port is on ECP mode (bi-directional) which can be used to read or write the port. If it is on SPP mode (one way), then it can write data to port only.
Is there any (simple) way in which i can access the COM port (read/write to XML device connected to it) using either Wndows Application (prefered) or Console Application!!
The "using System.IO.Ports" is not available in VS.NET 2003. Likewise the 'MSComm' control.
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