using System;
using System.Drawing;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
public class DoubleBuffering : Form
{
public DoubleBuffering()
{
InitializeComponent();
image = Image.FromFile("YourFile.bmp");
tmrRefresh.Start();
}
private int imageSize = 0;
private Image image;
private void tmrRefresh_Tick(object sender, EventArgs e)
{
imageSize++;
this.Invalidate();
}
private void DoubleBuffering_Paint(object sender, PaintEventArgs e)
{
Graphics g;
g = e.Graphics;
g.SmoothingMode = SmoothingMode.HighQuality;
g.FillRectangle(Brushes.Yellow, new Rectangle(new Point(0, 0),this.ClientSize));
g.DrawImage(image, 50, 50, 50 + imageSize, 50 + imageSize);
}
private void chkUseDoubleBuffering_CheckedChanged(object sender, EventArgs e)
{
this.DoubleBuffered = chkUseDoubleBuffering.Checked;
}
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new DoubleBuffering());
}
private System.ComponentModel.IContainer components = null;
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
this.tmrRefresh = new System.Windows.Forms.Timer(this.components);
this.chkUseDoubleBuffering = new System.Windows.Forms.CheckBox();
this.SuspendLayout();
//
// tmrRefresh
//
this.tmrRefresh.Tick += new System.EventHandler(this.tmrRefresh_Tick);
//
// chkUseDoubleBuffering
//
this.chkUseDoubleBuffering.AutoSize = true;
this.chkUseDoubleBuffering.Location = new System.Drawing.Point(12, 3);
this.chkUseDoubleBuffering.Size = new System.Drawing.Size(127, 17);
this.chkUseDoubleBuffering.TabIndex = 0;
this.chkUseDoubleBuffering.Text = "Use Double Buffering";
this.chkUseDoubleBuffering.UseVisualStyleBackColor = true;
this.chkUseDoubleBuffering.CheckedChanged += new System.EventHandler(this.chkUseDoubleBuffering_CheckedChanged);
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(299, 277);
this.Controls.Add(this.chkUseDoubleBuffering);
this.Text = "Double Buffering";
this.Paint += new System.Windows.Forms.PaintEventHandler(this.DoubleBuffering_Paint);
this.ResumeLayout(false);
this.PerformLayout();
}
private System.Windows.Forms.Timer tmrRefresh;
private System.Windows.Forms.CheckBox chkUseDoubleBuffering;
}
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