Create a Region whose boundary is the above GraphicsPath : Region « 2D « C# / CSharp Tutorial

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C# / CSharp Tutorial » 2D » Region 
27.11.3.Create a Region whose boundary is the above GraphicsPath
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Text;
using System.Windows.Forms;

public class Form1 : Form {

    protected override void OnPaint(PaintEventArgs e) {
    Graphics g = e.Graphics;
    g.FillRectangle(Brushes.White, this.ClientRectangle);
    GraphicsPath gp = new GraphicsPath();
    gp.AddLine(10101050);
    gp.AddLine(10505050);
    gp.AddLine(50505010);
    gp.StartFigure();
    gp.AddLine(60106050);
    gp.AddLine(605010050);
    gp.AddLine(1005010010);
    gp.CloseFigure();
    Rectangle r = new Rectangle(110104040);
    gp.AddEllipse(r);
    Region reg = new Region(gp);
    g.FillRegion(Brushes.Green, reg);
    reg.Dispose();
    gp.Dispose();
    }
    public static void Main() {
        Application.Run(new Form1());
    }
}
27.11.Region
27.11.1.Region.IsVisible
27.11.2.Create an irregular Region add a circle to the region
27.11.3.Create a Region whose boundary is the above GraphicsPath
27.11.4.Create a Region object, cut a rectangular hole in it, and fill it
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