<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv=Content-Type content="text/html; charset=us-ascii">
<meta name=Generator content="Microsoft Word 12 (filtered medium)">
<style>
<!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p
{mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:0cm;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
span.gmailquote
{mso-style-name:gmail_quote;}
span.EmailStyle19
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;}
@page Section1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.Section1
{page:Section1;}
-->
</style>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang=EN-NZ link=blue vlink=purple>
<div class=Section1>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>Thanks
Paul, however, the first link is also only for DOS based systems up to Windows
ME.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>The
Sergey Ageev component “DirectPort” is similar to what I am using
already -- another component on that page called SmallPort. Both
components allow accessing ports directly as you can in MS-DOS and up to
Windows ME. I’ve been using SmallPort for a few years and it works
fine up to Windows Vista.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>However,
neither component provides a way to find the I/O address of a specific port.
I’m currently using a unit which uses several HKEY_LOCAL_MACHINE registry
locations to obtain the I/O address of an LPT port, but this is not working in
the case of a USB based removable LPT port.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>All
I need is the I/O address allocated to this LPT port. I don’t need
a component to access the port itself. It can be set as LPT1, LPT2, LPT3
etc in the configuration, but then how does a program see what LPT ports are
available? There must be some way.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>Any
further ideas?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>Thanks,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>Ross.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> delphi-bounces@delphi.org.nz
[mailto:delphi-bounces@delphi.org.nz] <b>On Behalf Of </b>Paul A Norman<br>
<b>Sent:</b> Wednesday, 19 December 2007 12:18 a.m.<br>
<b>To:</b> NZ Borland Developers Group - Delphi List<br>
<b>Subject:</b> Re: [DUG] LPT ports<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<p class=MsoNormal>Dear Ross,<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>Never used these, found them years ago(!), might be worth
checking through and see if they give any routine for doing that. I am
thinkinhg that one of the things below may have an iteration process for
looking.<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<div>
<p class=MsoNormal>Never done it myself though!<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>Paul<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>TRY://<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
</div>
<div>
<p class=MsoNormal><a href="http://www.torry.net/authorsmore.php?id=1332">http://www.torry.net/authorsmore.php?id=1332</a><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>This guy has had stuff on the net in the past <a
href="mailto:Lars@dybdahl.dk">Lars@dybdahl.dk</a><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>And look for Seergev Ageev on <a
href="http://www.torry.net/pages.php?id=227">http://www.torry.net/pages.php?id=227</a><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><br>
<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span class=gmailquote>On 17/12/2007, <b>Ross Levis</b> <<a
href="mailto:ross@stationplaylist.com">ross@stationplaylist.com</a>> wrote:</span>
<o:p></o:p></p>
<div>
<div>
<p>Does anyone know of a way to find all LPT ports installed on a PC and the
I/O address of the ports.<o:p></o:p></p>
<p> <o:p></o:p></p>
<p>Up to now I've been using a 3<sup>rd</sup> party routine I found on the
internet which uses the registry to obtain this information, and this has
worked well for years, but a user has installed a USB based LPT port and it
doesn't appear in the usual place in the registry, although Windows sees it as
LPT1. <o:p></o:p></p>
<p> <o:p></o:p></p>
<p>I need the physical I/O address of the port as I need this to access the
individual pins on the port, using a 3<sup>rd</sup> party device driver service
which allows low level access to ports.<o:p></o:p></p>
<p> <o:p></o:p></p>
<p>Thanks,<o:p></o:p></p>
<p>Ross.<o:p></o:p></p>
</div>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
</body>
</html>