Rysowanie prostokątów



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 RysowanieProstokatow2
{
    public partial class Form1 : Form
    {
        Graphics g1;
        public Form1()
        {
            InitializeComponent();
            g1 = this.CreateGraphics();
            
            
          
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            
            
        }

        private void Button1_Click(object sender, EventArgs e)
        {
            

        }

        private void Button1_Click_1(object sender, EventArgs e)
        {
            
        }

        private void Button1_Click_2(object sender, EventArgs e)
        {
            Pen p1 = new Pen(Color.Blue, 3);
            g1.DrawRectangle(p1, 10, 100, 100, 60);
        }

        private void Button2_Click(object sender, EventArgs e)
        {
            SolidBrush b1;
            b1 = new SolidBrush(Color.Aqua);
            g1.FillRectangle(b1, 120, 100, 200, 100);

        }

        private void Button3_Click(object sender, EventArgs e)
        {
            Pen p1 = new Pen(Color.Red, 3);
            g1.TranslateTransform(400, 100);
            for (int i = 1; i <= 5; i++)
                g1.DrawRectangle(p1, i * 10, i * 5, 300 - i * 20, 200 - i * 10);

        }
    }
}