Csharp/CSharp Tutorial/2D/Image

DrawImage with Graphics

<source lang="csharp">using System; using System.Collections.Generic; using System.ruponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; public class Form1 : Form {

   protected override void OnPaint(PaintEventArgs e) {
   Graphics g = e.Graphics;
   Bitmap bmp = new Bitmap("a.jpg");
   g.FillRectangle(Brushes.White, this.ClientRectangle);
   Rectangle sr = new Rectangle(80, 60, 400, 400);
   Rectangle dr = new Rectangle(0, 0, 200, 200);
   g.DrawImage(bmp, dr, sr, GraphicsUnit.Pixel);
   }
   public static void Main() {
       Application.Run(new Form1());
   }

}</source>

Image.FromFile: load image from file

<source lang="csharp">using System; using System.Drawing; using System.Windows.Forms;

class ImageFromFile: Form {

    public static void Main()
    {
         Application.Run(new ImageFromFile());
    }
    public ImageFromFile()
    {
         Text = "Image From File";
         ResizeRedraw = true; 
    }
    protected override void OnPaint(PaintEventArgs pea)
    {
         DoPage(pea.Graphics, ForeColor,ClientSize.Width, ClientSize.Height);
    }     
    protected void DoPage(Graphics grfx, Color clr, int cx, int cy)
    {
         Image image = Image.FromFile("Color.jpg");
  
         grfx.DrawImage(image, 0, 0);
    }

}</source>

Load Picture from Internet

<source lang="csharp">using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; using System.Net; using System.IO; public class Form1 : System.Windows.Forms.Form {

   [STAThread]
   static void Main() {
       Application.Run(new Form1());
   }
   protected override void OnPaint(System.Windows.Forms.PaintEventArgs e) {
       WebRequest wReq = WebRequest.Create("http://www.yoursite.ru/4.jpg");  // using System.Net;
       WebResponse wRes = wReq.GetResponse();
       Stream strm = wRes.GetResponseStream();
       Image im = Image.FromStream(strm);
       e.Graphics.DrawImage(im, 0, 50);
       strm.Close();
   }

}</source>