using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Reflection;
using System.Windows.Forms;
using System.IO;
using System.Drawing; 

namespace ConsoleApp30
{
    class Program
    {
        static System.Windows.Forms.Form fm;
        [STAThread]
        static void Main(string[] args)
        {
            AccessEmbededResources();
            Application.EnableVisualStyles();
            Application.Run(fm);            
            Console.ReadLine();
        }

        static void AccessEmbededResources()
        {
            Assembly asm = Assembly.GetExecutingAssembly();
            string fileName = "ConsoleApp30.Resources.LYF4.jpg";           
            using (Stream sm = asm.GetManifestResourceStream(fileName))
            {
                Image img = System.Drawing.Image.FromStream(sm);
                fm = new Form();
                fm.WindowState = FormWindowState.Maximized;
                fm.FormBorderStyle = FormBorderStyle.Fixed3D;
                fm.BackgroundImage = img;
                fm.BackgroundImageLayout = ImageLayout.Zoom;
                fm.TopMost = true;               
                fm.Show();
            }
        }
    }
}