窗体动画效果

【实例截图】窗体打开和关闭时的动画效果

【核心代码】

        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            this.mainMenu1 = new System.Windows.Forms.MainMenu(this.components);
            this.menuItem1 = new System.Windows.Forms.MenuItem();
            this.menuItem2 = new System.Windows.Forms.MenuItem();
            this.SuspendLayout();
            //
            // mainMenu1
            //
            this.mainMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
            this.menuItem1});
            //
            // menuItem1
            //
            this.menuItem1.Index = 0;
            this.menuItem1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
            this.menuItem2});
            this.menuItem1.Text = "File";
            //
            // menuItem2
            //
            this.menuItem2.Index = 0;
            this.menuItem2.Text = "Exit";
            this.menuItem2.Click = new System.EventHandler(this.menuItem2_Click);
            //
            // Form1
            //
            this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
            this.ClientSize = new System.Drawing.Size(288, 197);
            this.Menu = this.mainMenu1;
            this.Name = "Form1";
            this.Text = "Form1";
            this.Closing = new System.ComponentModel.CancelEventHandler(this.Form1_Closing);
            this.Load = new System.EventHandler(this.Form1_Load);
            this.ResumeLayout(false);

        }