Solved

How to access to LPT Port

Posted on 1998-09-14
4
312 Views
Last Modified: 2010-04-06
I need to know how I can access directly to the LPT-Port in Delphi 3.0 We developed a program in Borland Pascal 7.0 and then transfered it to Delphi. In Pascal we used the "port" command. So what do we use in Delphi ?
0
Comment
Question by:sacky
  • 2
4 Comments
 
LVL 2

Expert Comment

by:kjteng
ID: 1339727
0
 
LVL 10

Expert Comment

by:viktornet
ID: 1339728
Do you need it for printing text???
0
 
LVL 10

Accepted Solution

by:
Jacco earned 50 total points
ID: 1339729
Use AssignPrn like this

procedure Print;
var
  F: TextFile;
begin
  AssignPrn(F);
  Rewrite(F);
  WriteLn(F,'Hello world');
  System.CloseFile(F);
end;

You can write escape codes like this:

Write(F,#27#12)

Regards Jacco
0
 
LVL 10

Expert Comment

by:viktornet
ID: 1339730
Hello...just for an idea you could alos use this...

procedure Print;
   var
     F: TextFile;
   begin
     AssignFile(F, 'LPT1');
     Rewrite(F);
     WriteLn(F,'Hello world');
     CloseFile(F);
   end;

Haven;t tasted that but you could give it a shot ;->
0

Featured Post

Live: Real-Time Solutions, Start Here

Receive instant 1:1 support from technology experts, using our real-time conversation and whiteboard interface. Your first 5 minutes are always free.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
add combobox item based on numbers 9 141
Print Graphic and Text to Epson TM-T88v 12 245
Convert MS Word document to a PDF file 9 78
Firemonkey webbrowser scrollbars ? 1 38
Introduction The parallel port is a very commonly known port, it was widely used to connect a printer to the PC, if you look at the back of your computer, for those who don't have newer computers, there will be a port with 25 pins and a small print…
Introduction Raise your hands if you were as upset with FireMonkey as I was when I discovered that there was no TListview.  I use TListView in almost all of my applications I've written, and I was not going to compromise by resorting to TStringGrid…
This tutorial gives a high-level tour of the interface of Marketo (a marketing automation tool to help businesses track and engage prospective customers and drive them to purchase). You will see the main areas including Marketing Activities, Design …
This Micro Tutorial demonstrates using Microsoft Excel pivot tables, how to reverse engineer competitors' marketing strategies through backlinks.

785 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question