Scribble with Path : Path « 2D Graphics « C# / C Sharp

1. C# / C Sharp
2. 2D Graphics
3. Path

Scribble with Path

 
using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;
   
class ScribbleWithPath: Form
{
     GraphicsPath path= new GraphicsPath();
     bool         bTracking;
     Point        ptLast;
   
     public static void Main()
     {
          Application.Run(new ScribbleWithPath());
     }
     protected override void OnMouseDown(MouseEventArgs mea)
     {
          if (mea.Button != MouseButtons.Left)
               return;
   
          ptLast = new Point(mea.X, mea.Y);
          bTracking = true;
   
          path.StartFigure();
     }
     protected override void OnMouseMove(MouseEventArgs mea)
     {
          if (!bTracking)
               return;
   
          Point ptNew = new Point(mea.X, mea.Y);
          
          Graphics grfx = CreateGraphics();
          grfx.DrawLine(new Pen(ForeColor), ptLast, ptNew);
          grfx.Dispose();
   
          path.AddLine(ptLast, ptNew);
   
          ptLast = ptNew;
     }
     protected override void OnMouseUp(MouseEventArgs mea)
     {
          bTracking = false;
     }
     protected override void OnPaint(PaintEventArgs pea)
     {
          pea.Graphics.DrawPath(new Pen(ForeColor), path);
     }
}

 

Related examples in the same category

1.	Start A Figure
2.	Close all figures
3.	Add a rectangle to a Path
4.	Is click inside a path
5.	Create Path from String
6.	GraphicsPath starts a new figure
7.	GraphicsPath closes a figure and starts a new figure
8.	GraphicsPath starts two figures and close them
9.	Add closed figures to GraphicsPath
10.	Fill path and draw path
11.	Add lines to Path
12.	Add Ellipse to path
13.	Widen a Path
14.	Add Bezier to a Path
15.	Add Line and Arc to Path
16.	Graphics Path Example
17.	Draw path
18.	Fillpath Demo