C# 桌面截屏 添加鼠标

 #region  第一种方法    
   [DllImport("user32.dll")]
        static extern bool GetCursorInfo(out CURSORINFO pci);

        private const Int32 CURSOR_SHOWING = 0x00000001;
         [StructLayout(LayoutKind.Sequential)]
        struct POINT
        {
            public Int32 x;
            public Int32 y;
        }

        [StructLayout(LayoutKind.Sequential)]
        struct CURSORINFO
        {
            public Int32 cbSize;
            public Int32 flags;
            public IntPtr hCursor;
            public POINT ptScreenPos;
        }
        public Image GetScreenImage()
        {
            Image myimage = new Bitmap(Screen.PrimaryScreen.WorkingArea.Width, Screen.PrimaryScreen.WorkingArea.Height);
            Graphics g = Graphics.FromImage(myimage);
            g.CopyFromScreen(new Point(0, 0), new Point(0, 0), new Size(Screen.PrimaryScreen.WorkingArea.Width, Screen.PrimaryScreen.WorkingArea.Height));

            //先截屏后，然后找到鼠标的位置，后将鼠标画上去
            CURSORINFO pci;
            pci.cbSize = Marshal.SizeOf(typeof(CURSORINFO));
            GetCursorInfo(out pci);
            System.Windows.Forms.Cursor cur = new System.Windows.Forms.Cursor(pci.hCursor);
            cur.Draw(g, new Rectangle(pci.ptScreenPos.x - 10, pci.ptScreenPos.y - 10, cur.Size.Width, cur.Size.Height));
            return myimage;
        }

#endregion

#region 使用在显存中获取

   IntPtr dc1 = CreateDC("DISPLAY", null, null, (IntPtr)null);
                    //创建显示器的DC
                    Graphics g1 = Graphics.FromHdc(dc1);
                    //由一个指定设备的句柄创建一个新的Graphics对象
                    Bitmap MyImage = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height, g1);
                    //根据屏幕大小创建一个与之相同大小的Bitmap对象  
                    Graphics g2 = Graphics.FromImage(MyImage);
                    //获得屏幕的句柄
                    IntPtr dc3 = g1.GetHdc();
                    //获得位图的句柄
                    IntPtr dc2 = g2.GetHdc();
                    //把当前屏幕捕获到位图对象中
                    BitBlt(dc2, 0, 0, Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height, dc3, 0, 0, 13369376);
                 

                    //CURSORINFO pci;
                    //pci.cbSize = Marshal.SizeOf(typeof(CURSORINFO));
                    //GetCursorInfo(out pci);
                    //System.Windows.Forms.Cursor cur = new System.Windows.Forms.Cursor(pci.hCursor);
                    //cur.Draw(g2, new Rectangle(pci.ptScreenPos.x - 10, pci.ptScreenPos.y - 10, cur.Size.Width, cur.Size.Height));

                    //把当前屏幕拷贝到位图中
                    g1.ReleaseHdc(dc3);
                    //释放屏幕句柄
                    g2.ReleaseHdc(dc2);
#endregion

不过做成windows服务中获取到屏幕的截图，先这样，等研究出来再说