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PRTOGGLE.C
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C/C++ Source or Header
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1997-07-05
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41 lines
/* +++Date last modified: 05-Jul-1997 */
/*
** prtoggle()
**
** Tee's all standard output to the printer.
**
** Parameters: None
**
** Returns: 0 if operation was successful.
** -1 if stdout or stdin is redirected.
**
** Side effects: Flushes the keyboard buffer
**
** Original Copyright 1988-1991 by Bob Stout as part of
** the MicroFirm Function Library (MFL)
**
** The user is granted a free limited license to use this source file
** to create royalty-free programs, subject to the terms of the
** license restrictions specified in the LICENSE.MFL file.
*/
#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <io.h>
#include "sniptype.h"
#include "sniprint.h"
#include "snipkbio.h"
int prtoggle(void)
{
if (!isatty(fileno(stdin)) || !isatty(fileno(stdout)))
return -1;
while (kbhit()) /* Flush the keyboard buffer */
getch();
ungetkey('P' - 64); /* Stuff a Ctrl-P into the buffer */
system(""); /* Let COMMAND.COM do the work */
return 0;
}