using System.Runtime.InteropServices;[DllImport("user32")]private static extern bool AnimateWindow(IntPtr hwnd, int dwTime, int dwFlags);//下面是可用的常量,按照不合的動畫結果聲明本身須要的private const int AW_HOR_POSITIVE = 0 x0001;//自左向右顯示窗口,該標記可以在遷移轉變動畫和滑動動畫中應用。應用AW_CENTER標記時忽視該標記private const int AW_HOR_NEGATIVE = 0 x0002;//自右向左顯示窗口,該標記可以在遷移轉變動畫和滑動動畫中應用。應用AW_CENTER標記時忽視該標記private const int AW_VER_POSITIVE = 0 x0004;//自頂向下顯示窗口,該標記可以在遷移轉變動畫和滑動動畫中應用。應用AW_CENTER標記時忽視該標記private const int AW_VER_NEGATIVE = 0 x0008;//自下向上顯示窗口,該標記可以在遷移轉變動畫和滑動動畫中應用。應用AW_CENTER標記時忽視該標記該標記private const int AW_CENTER = 0 x0010;//若應用了AW_HIDE標記,則使窗口向內重疊;不然向外擴大private const int AW_HIDE = 0 x10000;//隱蔽窗口private const int AW_ACTIVE = 0 x20000;//激活窗口,在應用了AW_HIDE標記后不要應用這個標記private const int AW_SLIDE = 0 x40000;//應用滑動類型動畫結果,默認為遷移轉變動畫類型,當應用AW_CENTER標記時,這個標記就被忽視private const int AW_BLEND = 0 x80000;//應用淡入淡出結果private void Form1_Load(object sender, EventArgs e){  int x = Screen.PrimaryScreen.WorkingArea.Right - this.Width;  int y = Screen.PrimaryScreen.WorkingArea.Bottom - this.Height;  this.Location = new Point(x, y);//設置窗體在屏幕右下角顯示  AnimateWindow(this.Handle, 1000, AW_SLIDE | AW_ACTIVE | AW_VER_NEGATIVE);}private void Form1_FormClosing(object sender, FormClosingEventArgs e){  AnimateWindow(this.Handle, 1000, AW_BLEND | AW_HIDE);}