main.c

//
//  main.m
//  LeitzUnixPrinitgExample
//
//  Created by Olga Fedorechko on 11/3/15.
//  Copyright © 2015 Esseslte IPR AB. All rights reserved.
//

#include <cups/cups.h>
#include <cups/ppd.h>
#include <stdio.h>

#define FILE_PATH "../Resources/test.pdf"

int main(int argc, char** argv)
{
    char printer_name[256]={0};

    // show printers list
    cups_dest_t *dests;
    int num_dests = cupsGetDests(&dests);
    for (int i=0; i<num_dests; ++i)
    {
        cups_dest_t *dest = dests + i;
        if (dest->instance)
        {
            printf("#%d: %s/%s\n", i, dest->name, dest->instance);
        }
        else
        {
            printf("#%d: %s\n", i, dest->name);
        }
    }
    
    if (num_dests < 1)
    {
        printf("no printers discovered. exit.\n");
        return 0;
    }
    
    // choose printer
    int prn_number = 0;
    if (num_dests != 1)
    {
        printf("Choose number of printer: \n");
        int ch = 0;
        ch = getchar();
        
        prn_number = ch - '0';
        if (prn_number < 0 || prn_number >= num_dests)
        {
            printf("exit.");
            return 0;
        }
    }
    
    cups_dest_t *dest = dests + prn_number;

    strcpy(printer_name, dest->name);
    for (int i=0; i<dest->num_options; ++i)
    {
        printf("#%02d: '%s'='%s'\n", i, dest->options[i].name, dest->options[i].value);
    }

    int             num_options = 0;
    cups_option_t*  options = NULL;
    
    /*
     orientation-requested=3 - portrait orientation (no rotation)
     orientation-requested=4 - landscape orientati
     on (90 degrees)
     orientation-requested=5 - reverse landscape or seascape orientation (270 degrees)
     orientation-requested=6 - reverse portrait or upside-down orientation (180 degrees)
     */
    num_options = cupsAddOption("orientation-requested", "3", num_options, &options);
    num_options = cupsAddOption("PageSize", "StandardAddressLabel", num_options, &options);
    
    // uncomment this to print on continuous
    /*
        num_options = cupsAddOption("PageSize", "Continuous70030001", num_options, &options);
        num_options = cupsAddOption("ContinuousMedia", "ON", num_options, &options);
        num_options = cupsAddOption("ContinuousPaperLength", "331", num_options, &options); width in points / 72 * 300
     */
    
    cupsPrintFile(printer_name, FILE_PATH, "Job name", num_options, options);
    cupsFreeOptions(num_options, options);
    
    return 0;
}