C#打印窗体的一部分区域并控制打印的大小

C#打印窗体的部分区域并控制打印的大小
  CS的代码，需要答应窗体的一个区域，需要打印的部分我放在了一个panel里，只打印pannel里面的部分，其余区域不打印

 自己试了很多次，发现打印区域总是无法完全控制 请问有没有谁做过类似的例子 最好能给出代码

一下是我的代码
 

   private void btnPrint_Click(object sender, EventArgs e)

        {

            CaptureScreen();

            this.printPreviewDialog1.Width = this.panelPrint.Width;

            this.printPreviewDialog1.ShowDialog();

        }


        private void CaptureScreen()

        {

            int x = this.panelPrint.Location.X;

            int y = this.panelPrint.Location.Y;

            int dx = this.panelPrint.Location.X;

            int dy = this.panelPrint.Location.Y;

            int fx = this.Location.X;

            int fy = this.Location.Y;


            Graphics myGraphics = this.panelPrint.CreateGraphics();

            Size s = this.panelPrint.Size;

            memoryImage = new Bitmap(s.Width, s.Height, myGraphics);

            Graphics memoryGraphics = Graphics.FromImage(memoryImage);

            memoryGraphics.CopyFromScreen(x,y,x,y,s);

        }


        private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)

        {

            e.Graphics.DrawImage(memoryImage, this.panelPrint.Location.X, this.panelPrint.Location.Y);

        }

------解决方案--------------------
http://blog.****.net/liuweihuhao/article/details/5812690  试试
------解决方案--------------------
http://blog.****.net/chybaby/article/details/3167846

参考这里的SaveUserArea方法
------解决方案--------------------
直接用Bitmap将panel的内容绘制下来，然后打印Bitmap的内容

using System.Drawing.Printing;

Bitmap _NewBitmap = null;

        public void InitPrint()

        {

            _NewBitmap = new Bitmap(panel1.Width, panel1.Height);

            panel1.DrawToBitmap(_NewBitmap, new Rectangle(0, 0, _NewBitmap.Width, _NewBitmap.Height));

        }

        private void button1_Click(object sender, EventArgs e)

        {

            InitPrint();          

            StandardPrintController spc = new StandardPrintController();

            this.printDocument1.PrintController = spc;

            this.printDocument1.Print();

        }

        private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)

        {

            e.Graphics.DrawImage(_NewBitmap, 0, 0, _NewBitmap.Width, _NewBitmap.Height);

        }