Software für Bildschirmaufnahmen mit Ringspeicher

using System;
using System.Linq;
using System.Drawing;
using System.IO;
using System.Drawing.Imaging;
using System.Windows.Forms;
using System.Threading;

namespace ScreenRecordBuffer {
    class Program {
        static void Main(string args) {
            if (args.Length != 3) {
                helpexit();
            }
            try {
                int interval = Int32.Parse(args);
                int keeptime = Int32.Parse(args[1]);
                string storepath = args[2].Trim();
                if (!Directory.Exists(storepath)) {
                    Console.WriteLine("Error! Supplied path does not exist!");  
                    Environment.Exit(1);
                }
                if (interval < 1 || interval > Int32.MaxValue || keeptime < 1 || keeptime > Int32.MaxValue) {
                    Console.WriteLine("Error! Supplied interval or keeptime is not valid! Must be an Int32 value.");  
                    Environment.Exit(1);
                }
                while (true) {
                    // Save Screenshot
                    using (Bitmap bmp = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height, PixelFormat.Format32bppArgb)) {
                        using (Graphics gfx = Graphics.FromImage(bmp)) {
                            gfx.CopyFromScreen(Screen.PrimaryScreen.Bounds.X, Screen.PrimaryScreen.Bounds.Y, 0, 0, Screen.PrimaryScreen.Bounds.Size, CopyPixelOperation.SourceCopy);
                            string filepath = Path.Combine(storepath, @"Screen_" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".jpg");  
                            bmp.Save(filepath, ImageFormat.Jpeg);
                        }
                    }
                    // Cleanup old images
                    foreach (string file in Directory.GetFiles(storepath, "Screen_*.jpg", SearchOption.TopDirectoryOnly).Where(x => File.GetCreationTime(x) < DateTime.Now.AddSeconds(-keeptime))){  
                        File.Delete(file);
                    }

                    // wait to take next image
                    Thread.Sleep(interval * 1000);
                }
                
            } catch (System.Exception ex) {
                Console.WriteLine("Application Exception: " + ex.Message);  
                Environment.Exit(1);
            }
        }
        static void helpexit() {
            Console.WriteLine("Error. You must supply 3 parameters.\n\tParameter 1: Time in Seconds between Screenshots\n\tParameter 2: Time in seconds to keep images stored.\n\tParameter 3: Directory where to store pictures.");  
            Console.ReadLine();
            Environment.Exit(1);
        }
    }
}