using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; using System.Drawing.Imaging; public class Form1 : System.Windows.Forms.Form { public Form1() { InitializeComponent(); } private void InitializeComponent() { this.AutoScaleBaseSize = new System.Drawing.Size(5, 13); this.ClientSize = new System.Drawing.Size(292, 273); this.Text = ""; this.Resize += new System.EventHandler(this.Form1_Resize); this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint); } static void Main() { Application.Run(new Form1()); } private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e) { Bitmap bmp = new Bitmap(100, 100); Graphics gImage = Graphics.FromImage(bmp); gImage.FillRectangle(Brushes.Red, 0, 0, bmp.Width, bmp.Height); gImage.DrawRectangle(Pens.Black, 10, 10, bmp.Width - 20, bmp.Height - 20); Graphics gScreen = e.Graphics; gScreen.FillRectangle(Brushes.White, this.ClientRectangle); gScreen.DrawImage(bmp, new Rectangle(10, 10, bmp.Width, bmp.Height)); } private void Form1_Resize(object sender, System.EventArgs e) { Invalidate(); } }