C# Form üzerinde Şekil Çizme

 using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

namespace WindowsFormsApp39

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        private void button1_Click(object sender, EventArgs e)

        {

            Pen myPen = new Pen(Color.Black, 2);

            Graphics formgraphics = null;

            formgraphics = this.CreateGraphics();

            SolidBrush drawBrush = new SolidBrush(Color.Black);

            Brush fillBrush = Brushes.Gray;

            formgraphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;

            formgraphics.FillRectangle(fillBrush, new Rectangle(10, 10, 250, 80));

            formgraphics.DrawRectangle(myPen, new Rectangle(10, 10, 250, 80));

            myPen.Dispose();

            formgraphics.Dispose();

        }

    }

}