Create a Bitmap image in memory and set its CompositingMode : Bitmap : Graphics C# Source Code


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Create a Bitmap image in memory and set its CompositingMode








    
 



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

public class Form1 : Form {

    protected override void OnPaint(PaintEventArgs e) {
    Graphics gForm = e.Graphics;
    gForm.FillRectangle(Brushes.White, this.ClientRectangle);
    for (int i = 1; i <= 7; ++i)
    {
      Rectangle r = new Rectangle(i * 40 - 15, 0, 15,
                    this.ClientRectangle.Height);
      gForm.FillRectangle(Brushes.Orange, r);
    }

    Bitmap bmp = new Bitmap(260, 260,System.Drawing.Imaging.PixelFormat.Format32bppArgb);
    Graphics gBmp = Graphics.FromImage(bmp);
    gBmp.CompositingMode = System.Drawing.Drawing2D.CompositingMode.SourceCopy;

    gForm.DrawImage(bmp, 20, 20, bmp.Width, bmp.Height);

    bmp.Dispose();
    gBmp.Dispose();

    }
    public static void Main() {
        Application.Run(new Form1());
    }
}

 
    
   
  
   







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