Parallel Port Access

This is a discussion on Parallel Port Access within the Windows Programming forums, part of the Platform Specific Boards category; Iīm developing a software that send signals to the parallel port, but i actually discovered that windows XP blocks my ...

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    Parallel Port Access

    Iīm developing a software that send signals to the parallel port, but i actually discovered that windows XP blocks my attempts, how can i send the signals without being stopped? I already tried dllīs that say that with them i can access the LPT but i couldnīt, it simply showed no result, no errors no efects example of a dll: http://www.logix4u.net/inpout32.htm

    OS: Windows XP Professional Service Pack 2
    COMPILER: MS VC 2005

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    http://www.lvr.com/parport.htm
    Did you try this as a normal user, or as admin. Newer operating systems can be pretty picky about letting programs access the hardware directly.
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    i tried that as a normal user with admin privilegies, and i already saw that website, in linux i was able to access the LPT but not in windows.

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