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Re: Printing from a C program in linux

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On Monday January 12 2015 08:48, in
comp.os.linux.development.apps, "mtkhusro92@gmail.com"
<mtkhusro92@gmail.com> wrote:

> On Tuesday, 14 August 2001 22:14:45 UTC-7, Jenco  wrote:
>> Hi,
>> 
>> I'm making a program in C for linux but an important thing i can't find
>> in my books is how to print from your C program
>> 
>> 
>> any hint,link or tutorial is welcome
>> 
>> 
>> 
>> thaaaaaaaaaaaaaaaaanx       Marco
> 
> 
> 
> any help?
> 
/*
        print_test_1.c

        Sample program to illustrate how to spool a plain text
        report to the Linux print system.
*/

#include <stdio.h>
#include <stdlib.h>


int main(void)
{
  FILE *spool;
  int line_no;

  if ((spool = popen("lpr -J \"Plain text print test\"","w")) == NULL)
  {
    fprintf(stderr,"Failed to connect to print spooler\n");
    return EXIT_FAILURE;
  }

  fprintf(spool,"Plain text spool test\n");
  for (line_no = 0; line_no < 20; ++line_no)
    fprintf(spool,"Line %d - test test test test test\n",line_no);

  if (pclose(spool) == -1)
    fprintf(stderr,"Failed to correctly release spooled print\n");
  else
    printf("Report spooled successfully\n");

  return EXIT_SUCCESS;
}

##########################################################################

/*
        print_test_2.c

        Sample program to illustrate how to spool a Postscript
        report to the Linux print system.
*/

#include <stdio.h>
#include <stdlib.h>

char *postscript[] = {  /* example postscript commands */
        "%!",
        "% Sample of printing text",
        "/Times-Roman findfont % Get the basic font",
        "20 scalefont          % Scale the font to 20 points",
        "setfont               % Make it the current font",
        "newpath               % Start a new path",
        "72 72 moveto          % Lower left corner of text at (72, 72)",
        "(Hello, world!) show  % Typeset 'Hello, world!',
        "showpage"
};

int main(void)
{
  FILE *spool;
  int line_no;

  if ((spool = popen("lpr -J \"Postscript print test\"","w")) == NULL)
  {
    fprintf(stderr,"Failed to connect to print spooler\n");
    return EXIT_FAILURE;
  }

  for (line_no = 0;
       line_no < (sizeof postscript / sizeof postscript[0]);
       ++line_no)
    fprintf(spool,"%s\n",postscript[line_no]);

  if (pclose(spool) == -1)
    fprintf(stderr,"Failed to correctly release spooled print\n");
  else
    printf("Report spooled successfully\n");

  return EXIT_SUCCESS;
}


-- 
Lew Pitcher
"In Skills, We Trust"
PGP public key available upon request

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Re: Printing from a C program in linux mtkhusro92@gmail.com - 2015-01-12 05:48 -0800
  Re: Printing from a C program in linux Jan Panteltje <panteltje@yahoo.com> - 2015-01-12 14:33 +0000
  Re: Printing from a C program in linux floyd@apaflo.com (Floyd L. Davidson) - 2015-01-12 05:34 -0900
  Re: Printing from a C program in linux Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2015-01-12 10:56 -0500
  Re: Printing from a C program in linux Jasen Betts <jasen@xnet.co.nz> - 2015-01-13 06:38 +0000
    Re: Printing from a C program in linux Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2015-01-13 17:28 +0200

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