double buffered in c# [closed]
Graphics g = Graphics.FromHwnd(panel.Handle);
                if (newImage == true)
                {
                    g.Clear(SystemColors.Control);
                    newImage = false;
                }

                g.DrawImage(bmp, hOffset, vOffset);
                g.Dispose();

this.SetStyle(ControlStyles.AllPaintingInWmPaint |ControlStyles.UserPaint |ControlStyles.DoubleBuffer, true);

System.Drawing.BufferedGraphics

System.Drawing.BufferedGraphics

System.Drawing.Graphics

System.Drawing.Graphics g = this.CreateGraphics();
        System.Drawing.BufferedGraphicsContext dc = new BufferedGraphicsContext();
        BufferedGraphics backbuffer = dc.Allocate(g, new Rectangle(new Point(0, 0), g.VisibleClipBounds.Size.ToSize()));
        backbuffer.Graphics.DrawImage(Image.FromFile(@"c:test.jpg"), new Point(10, 10));
        backbuffer.Render(g);