a printer util for windows

printer.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing.Printing;
using System.Drawing;

namespace ConsoleApp1
{
    class Program
    {
        private static int printerIndex;
        private static bool isLandscape;
        private static System.Drawing.Image img;

        static void Main(string[] args)
        {
            // Check for arguments
            if (args.Count() < 1)
            {
                System.Environment.Exit(1);
            }

            string mode = args[0];

            var printers = System.Drawing.Printing.PrinterSettings.InstalledPrinters;

            // List available printers
            if (mode.Equals("list"))
            {
                ListPrinters();
            }
            // Print selected image using selected printer
            else if (mode.Equals("print"))
            {
                printerIndex = GetIndexOpt(args, printers.Count - 1);
                isLandscape = HasOption("-l", args) > -1;
                string imgPath;

                try
                {
                    imgPath = args[1];
                    img = System.Drawing.Image.FromFile(imgPath);
                }
                catch (System.IO.FileNotFoundException)
                {
                    Console.WriteLine("File not found");
                    Environment.Exit(0);
                }
                catch (Exception)
                {
                    Console.WriteLine("Unknown error");
                    Environment.Exit(0);
                }

                PrintDocument pd = new PrintDocument();
                pd.PrinterSettings.PrinterName = printers[printerIndex];
                pd.PrintPage += PrintPage;
                pd.DefaultPageSettings.Landscape = isLandscape;
                pd.Print();

                Console.WriteLine("OK");
            }
        }

        private static void PrintPage(object sender, PrintPageEventArgs e)
        {
            Rectangle m = e.MarginBounds;

            if ((double)img.Width / (double)img.Height > (double)m.Width / (double)m.Height) // image is wider
            {
                m.Height = (int)((double)img.Height / (double)img.Width * (double)m.Width);
            }
            else
            {
                m.Width = (int)((double)img.Width / (double)img.Height * (double)m.Height);
            }

            e.Graphics.DrawImage(img, m);
            img.Dispose();
        }

        private static void ListPrinters()
        {
            foreach (string printer in System.Drawing.Printing.PrinterSettings.InstalledPrinters)
            {
                Console.WriteLine(printer);
            }
        }

        private static int GetIndexOpt(string[] args, int maxIndex, int defIndex = 0)
        {
            int optIndex = HasOption("-i", args);

            if (optIndex < 0)
            {
                return defIndex;
            }
            else if (optIndex + 1 < args.Count())
            {
                try
                {
                    return Math.Max(0, Math.Min(Int32.Parse(args[optIndex + 1]), maxIndex));
                }
                catch
                {
                    return defIndex;
                }
            }

            return defIndex;
        }

        static int HasOption(string opt, string[] args)
        {
            for (int i = 0; i < args.Count(); i++)
            {
                if (args[i].Trim().Equals(opt))
                {
                    return i;
                }
            }

            return -1;
        }
    }
}