Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!dsacg1!dcscg1!cpp90221
From: cpp90221@dcscg1.UUCP (Duane L. Rezac)
Newsgroups: comp.lang.c
Subject: Re: How do I get printf to move to a tab position?
Summary: code to print at specific location
Keywords: printf, tab, overwrite
Message-ID: <284@dcscg1.UUCP>
Date: 26 May 88 11:46:23 GMT
References: <242@tahoma.UUCP>
Organization: Defense Construction Supply Center, Columbus
Lines: 38

In article <242@tahoma.UUCP>, jwf0978@tahoma.UUCP (John W. Fawcett) writes:
> ....  I would like to be able to tab over to a certain
> position on a line and place some text there without overwriting text that
> was already on the line.....

 
NOTE: our posting program indicated that my original attempt at posting
      this may not have made it out, so I am posting it with a diffrent
      program. If this is a duplicate posting, my appologies.


I am a newcomer to C, just finishing my first class in C, but this may help.


If you are using an ansi terminal, this code may help.  I wrote this printl
function in order to let me print to a specific screen position. If you are
trying to print to a printer, you could replace the ansi cursor movement 
statement with the appropriate command sequence for your printer.
(If someone knows a better way to do this, Please post it. As I said, I am 
 a novice at C and there may be better ways to do this.)

/* printl - print at location x,y  x,y = screen position,
            control=printf template,
             args=data to be printed

            This is used just like printf except that an x,y screen position
            is passsed. (i.e. printl(10,10,"%s",name) prints the string name
            at column 10, row 10)*/
printl(x,y,control,args)
unsigned char *control;
unsigned args;
int x,y;
{
  printf("\33[%d;%dH",x,y); /* prints ansi cursor movement command to stdout*/
  printf(control,args);     /* print data */
}

I hope this helps.