designPattern/DesignPattern/Facade/Subsystems/PictureSystem.cs

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;

namespace Facade.Subsystems
{
	class PictureSystem
	{
		Random rand = new Random();

		public byte[] GetPicture(int id)
		{
			byte[] data = new byte[id];
			rand.NextBytes(data);

			return data;
		}
	}
}