сохранение моей графической панели в формате png или jpg

Question

Я создаю графическую панель [мою собственную программу рисования], и я хочу сохранить собственный рисунок. Это мой весь код:

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Linq; 
using System.Text; 
using System.Windows.Forms; 

namespace pezeshk 
{ 
    public partial class pen : Form 
    { 
     private SolidBrush myBrush; 
     private Graphics myGraphics; 
     private bool isDrawing = false; 
     public pen() 
     { 
      InitializeComponent(); 
     } 

     private void pen_Load(object sender, EventArgs e) 
     { 
      myBrush = new SolidBrush(panel2.BackColor); 
      myGraphics = panel1.CreateGraphics(); 

     } 

     private void panel2_MouseDoubleClick(object sender, MouseEventArgs e) 
     { 
      if (colorDialog1.ShowDialog() == DialogResult.OK) 
      { 
       panel2.BackColor = colorDialog1.Color; 
       myBrush.Color = panel2.BackColor; 
      } 
     } 

     private void panel1_MouseDown(object sender, MouseEventArgs e) 
     { 
      isDrawing = true; 
     } 

     private void panel1_MouseUp(object sender, MouseEventArgs e) 
     { 
      isDrawing = false; 
     } 

     private void panel1_MouseMove(object sender, MouseEventArgs e) 
     { 
      if (isDrawing == true) 
      { 
       myGraphics.FillEllipse(myBrush, e.X, e.Y, trackBar1.Value, trackBar1.Value); 
      } 
     } 


} 

Answer 1

для всех, что нужно этот код этого кода работает [ТНХ в @Taw]

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Linq; 
using System.Text; 
using System.Windows.Forms; 


namespace pezeshk 
{ 
    public partial class pen : Form 
    { 
     private SolidBrush myBrush; 
     private Pen myPen; 
     private Graphics myGraphics; 
     private bool isDrawing = false; 
     public pen() 
     { 
      InitializeComponent(); 
      myPen = new Pen(Color.ForestGreen); 
      myBrush = new SolidBrush(Color.DarkSlateBlue); 
     } 
     void panel1_paint(object sender, PaintEventArgs e) 
     { 
      if (rb_pen.Checked) 
      { 
       if (points.Count > 1) e.Graphics.DrawCurve(myPen, points.ToArray()); 
       foreach (List<Point> lp in curves) 
        if (lp.Count > 1) 
         e.Graphics.DrawCurve(myPen, lp.ToArray()); 


      } 
     } 
     private void pen_Load(object sender, EventArgs e) 
     { 
      myBrush = new SolidBrush(panel2.BackColor); 
      myGraphics = panel1.CreateGraphics(); 


     } 

     private void panel2_MouseDoubleClick(object sender, MouseEventArgs e) 
     { 
      if (colorDialog1.ShowDialog() == DialogResult.OK) 
      { 
       panel2.BackColor = colorDialog1.Color; 
       myBrush.Color = panel2.BackColor; 
      } 
     } 
     Point mDown = Point.Empty; 
     private void panel1_MouseDown(object sender, MouseEventArgs e) 
     { 
      mDown = e.Location; 
     } 

     private void panel1_MouseUp(object sender, MouseEventArgs e) 
     { 
      if (rb_pen.Checked) 
      { 
       if (points.Count > 1) curves.Add(points.ToList()); // copy!! 
       points.Clear(); 
       panel1.Invalidate(); 
      } 


      panel1.Invalidate(); 
     } 
     private void panel1_MouseMove(object sender, MouseEventArgs e) 
     { 
      if (e.Button == System.Windows.Forms.MouseButtons.Left) 
      { 

       if (rb_pen.Checked) 
       { 
        points.Add(e.Location); 

       } 
       panel1.Invalidate(); 
      } 
     } 

     List<Rectangle> circles = new List<Rectangle>(); 
     List<Point> points = new List<Point>(); 
     List<List<Point>> curves = new List<List<Point>>(); 
     private void button1_Click(object sender, EventArgs e) 
     { 
      string somefolder = "D:\\"; using (Bitmap bmp = new Bitmap(panel1.ClientSize.Width, panel1.ClientSize.Height)) 
      { 
       panel1.DrawToBitmap(bmp, panel1.ClientRectangle); bmp.Save(somefolder + panel1.Name + ".jpg", System.Drawing.Imaging.ImageFormat.Jpeg); 
      } 
     } 

     private void button2_Click(object sender, EventArgs e) 
     { 
      curves.Clear(); points.Clear(); panel1.Invalidate(); 
     } 

    } 
    class DrawPanel : Panel 
    { 
     public DrawPanel() { DoubleBuffered = true; } 
    } 

}