Scrolling (AutoScrollMinSize)

   
 


using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

public class Form1 : System.Windows.Forms.Form {
    [STAThread]
    static void Main() {
        Application.Run(new Form1());
    }
    protected override void OnPaint(PaintEventArgs e) {
        Graphics g;
        g = Graphics.FromHwnd(this.Handle);
        GraphicsUnit units = GraphicsUnit.Pixel;

        string path = "your.jpg";
        Image im = Image.FromFile(path);
        this.AutoScrollMinSize = new Size(im.Width, im.Height);
        //this.AutoScroll = true;

        Point P = this.AutoScrollPosition;
        Rectangle dstR = this.ClientRectangle;
        RectangleF srcR = new RectangleF(-P.X, -P.Y, dstR.Width, dstR.Height);
        g.DrawImage(im, dstR, srcR, units);
        g.Dispose();
    }
}