Image.GetThumbnailImage
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Net;
using System.IO;
public class Form1 : System.Windows.Forms.Form {
[STAThread]
static void Main() {
Application.Run(new Form1());
}
protected override void OnPaint(System.Windows.Forms.PaintEventArgs e) {
string p = "s.JPG";
Image i = Image.FromFile(p);
Image tn = i.GetThumbnailImage(50, 50, null, IntPtr.Zero); // <=>(IntPtr)0
e.Graphics.DrawImage(tn, 100, 0, tn.Width, tn.Height);
e.Graphics.Dispose();
}
}
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