Winform 使用panel 自定义拖动窗体

private void panel1_MouseDown(object sender, MouseEventArgs e)

       {

            Common.FromCustomStyle.MoveForm(this, this.panel1);

        }

///<summary>

       ///拖动Panel 窗体移动

       ///</summary>

       ///<param name="form1">窗口实例</param>

       ///<param name="panel1">要拖动的Panel</param>

       public static void MoveForm(Form form1,System.Windows.Forms.Panel panel1)

       {

            ReleaseCapture();

            SendMessage(form1.Handle,WM_SYSCOMMAND, SC_MOVE + HTCAPTION, 0);//*********************调用移动无窗体控件函数 

 

       }

       //定义无边框窗体Form 

       [DllImport("user32.dll")]//*********************拖动无窗体的控件 

       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;