Draw Path and get mouse click : Path : Drawing 2D C# Examples

    
using  System;
using  System.Drawing;
using  System.Drawing.Drawing2D;
using  System.Collections;
using  System.ComponentModel;
using  System.Windows.Forms;
using  System.Data;

public  class  DrawPathMouseClick  :  System.Windows.Forms.Form
{
    private  System.ComponentModel.Container  components  =  null;

    GraphicsPath  myPath  =  new  GraphicsPath();

    private  bool  isImageClicked  =  false;
    private  int  imageClickedIndex;

    public  DrawPathMouseClick()
    {
        InitializeComponent();

        myPath.StartFigure();
        myPath.AddLine(new  Point(150,  10),  new  Point(120,  150));
        myPath.AddArc(200,  200,  100,  100,  0,  90);
        Point  point1  =  new  Point(250,  250);
        Point  point2  =  new  Point(350,  275);
        Point  point3  =  new  Point(350,  325);
        Point  point4  =  new  Point(250,  350);
        Point[]  points  =  {point1,  point2,  point3,  point4};
        myPath.AddCurve(points);
        myPath.CloseFigure();
    }

    protected  override  void  Dispose(  bool  disposing  )
    {
        if(  disposing  )
        {
            if  (components  !=  null)  
            {
                components.Dispose();
            }
        }
        base.Dispose(  disposing  );
    }

    private  void  InitializeComponent()
    {
        this.AutoScaleBaseSize  =  new  System.Drawing.Size(5,  13);
        this.ClientSize  =  new  System.Drawing.Size(376,  361);
        this.MouseUp  +=  new  System.Windows.Forms.MouseEventHandler(this.DrawPathMouseClick_MouseUp);
        this.Paint  +=  new  System.Windows.Forms.PaintEventHandler(this.DrawPathMouseClick_Paint);
    }

    [STAThread]
    static  void  Main()  
    {
        Application.Run(new  DrawPathMouseClick());
    }

    private  void  DrawPathMouseClick_MouseUp(object  sender,  System.Windows.Forms.MouseEventArgs  e)
    {
        Point  mousePt  =  new  Point(e.X,  e.Y);

        if(myPath.IsVisible(mousePt))
        {
            isImageClicked  =  true;
            imageClickedIndex  =  3;
        }
        else
        {
            isImageClicked  =  false;
        }
        Invalidate();
    }

    private  void  DrawPathMouseClick_Paint(object  sender,  System.Windows.Forms.PaintEventArgs  e)
    {
        Graphics  g  =  e.Graphics;

        g.FillPath(Brushes.RoyalBlue,  myPath);

        if(isImageClicked  ==  true)
        {
            Pen  outline  =  new  Pen(Color.Purple,  5);

            switch(imageClickedIndex)
            {
                case  3:
                    g.DrawPath(outline,  myPath);
                    break;

                default:
                    break;
            }
        }            
    }
}