窗口最大化禁止遮擋任務欄

            
//接收的參數m來自protected override void WndProc(ref Message m);
Win32Helper.MINMAXINFO minmax =
                            (Win32Helper.MINMAXINFO)Marshal.PtrToStructure(
                            m.LParam, typeof(Win32Helper.MINMAXINFO));
            minmax.minTrackSize.Width = this.MinimumSize.Width;
            minmax.minTrackSize.Height = this.MinimumSize.Height;
            if (this.MaximumSize.Width != 0 || this.MaximumSize.Height != 0)
            {
                minmax.maxTrackSize.Width = this.MaximumSize.Width;
                minmax.maxTrackSize.Height = this.MaximumSize.Height;
            }
            //設置窗口的最大寬度爲工作區域的寬度
            minmax.maxSize.Width = Screen.PrimaryScreen.WorkingArea.Width;
            //設置窗口的最大高度爲工作區域的高度
            minmax.maxSize.Height = Screen.PrimaryScreen.WorkingArea.Height;
            minmax.maxPosition.X = 1;
            minmax.maxPosition.Y = 1;

            System.Runtime.InteropServices.Marshal.StructureToPtr(minmax, m.LParam, true);