Screenshot using C# .NET

•  Create a window application using MS Visual Studio. 
• Add a Picture box and a Button.

Source Code

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Drawing.Imaging ;

using System.Text;

using System.Windows.Forms;

namespace screen_shot

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        private void button1_Click(object sender, EventArgs e)

        {

            int scrwidth = Screen.GetBounds(new Point(0, 0)).Width;

            int scrheight = Screen.GetBounds(new Point(0, 0)).Height;

            Bitmap bmp = new Bitmap(scrwidth, scrheight);

            Graphics gfx = Graphics.FromImage((Image)bmp);

            gfx.CopyFromScreen(0,0,0,0,new Size(scrwidth,scrheight));

            bmp.Save(@"c:\test.jpg",ImageFormat.Jpeg);

        }

    }

}