Mega Code Archive

 

Categories / C# / 2D Graphics

 

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());     } }