//全区域移动
        const int WM_NCLBUTTONDOWN = 0xA1;        const int HT_CAPTION = 0x2;        [DllImport("user32.dll")]        static extern int SendMessage(IntPtr hWnd, int Msg, int wParam, int lParam);        protected override void onm ouseDown(MouseEventArgs e)        {            if (e.Button == MouseButtons.Left)            {                this.Capture = false;                SendMessage(Handle, WM_NCLBUTTONDOWN, HT_CAPTION, 0);            }            else            {                this.Close(); // 右键可以退出窗体            }        }
　　　　　
　　　　　
　　　　　

        
　　　　　//标题区域移动
　　　　　[DllImport("user32.dll")]        public static extern bool ReleaseCapture();        [DllImport("user32.dll")]        public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam);        public const int WM_SYSCOMMAND = 0x0112;        public const int SC_MOVE = 0xF010;        public const int HTCAPTION = 0x0002;        public void ShapedForm_MouseDown(object sender, MouseEventArgs e)        {            ReleaseCapture();            SendMessage(this.Handle, WM_SYSCOMMAND, SC_MOVE + HTCAPTION, 0);        }