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/*
** change_prn()
**
** A function to change the standard printer device for the duration
** of a program. Valid new device codes are:
**
** 0 - LPT1
** 1 - LPT2
** 2 - LPT3
** 3 - COM1
** 4 - COM2
** 5 - CON
**
** Original Copyright 1988-1991 by Bob Stout as part of
** the MicroFirm Function Library (MFL)
**
** This subset version is functionally identical to the
** version originally published by the author in Tech Specialist
** magazine and is hereby donated to the public domain.
*/
#include <stdio.h>
int change_prn(int device)
{
char *newdev;
switch (device)
{
case 0:
newdev = "LPT1";
break;
case 1:
newdev = "LPT2";
break;
case 2:
newdev = "LPT3";
break;
case 3:
newdev = "COM1";
break;
case 4:
newdev = "COM2";
break;
case 5:
newdev = "CON";
break;
default:
return -1;
}
return (NULL == freopen(newdev, "w", stdprn));
}
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