高分求高手指点！！打印Panel控件中的所有内容？？？（问题解决就给分，不够再加！！）
在Panel控件中，有条形码（BarcodeControl）控件和pictureBox控件和一个Label，这三个组合在Panel控件中，我要把Panel控件的这些控件内容都打印和保存下来，代码该怎么写？？？
我自己写了点打印的，一直不对~~~~~
那为高手指点下！！！！！
private   void   SaveButton2_Click(object   sender,   EventArgs   e)
                {
                        PrintDocument   pd   =   new   PrintDocument();
                        pd.PrintPage   +=   new   PrintPageEventHandler(pd_PrintPage);

                        PrintPreviewDialog   cppd   =   new   PrintPreviewDialog();
                        cppd.Document   =   pd;
                        cppd.ShowDialog();
                }
void   pd_PrintPage(object   sender,   PrintPageEventArgs   e)
                {
                        Graphics   g   =   panel1.CreateGraphics();
                        Size   s   =   panel1.Size;
                        Bitmap   b   =   new   Bitmap(s.Width,   s.Height,   g);
                        Graphics   g2   =   Graphics.FromImage(b);  
                        IntPtr   dc1   =   g.GetHdc();
                        IntPtr   dc2   =   g2.GetHdc();
                        g.ReleaseHdc(dc1);
                        g2.ReleaseHdc(dc2);

                        g.Dispose();
                        g2.Dispose();


                        }

------解决方案--------------------
[System.Runtime.InteropServices.DllImport( "gdi32.dll ")]
public static extern long BitBlt (IntPtr hdcDest, int nXDest, int nYDest, int nWidth, int nHeight, IntPtr hdcSrc, int nXSrc, int nYSrc, int dwRop);
private Bitmap memoryImage;
private void CaptureScreen()
{
Graphics mygraphics = this.CreateGraphics();
Size s = this.Size;
memoryImage = new Bitmap(s.Width, s.Height, mygraphics);
Graphics memoryGraphics = Graphics.FromImage(memoryImage);
IntPtr dc1 = mygraphics.GetHdc();
IntPtr dc2 = memoryGraphics.GetHdc();
BitBlt(dc2, 0, 0, this.ClientRectangle.Width, this.ClientRectangle.Height, dc1, 0, 0, 13369376);
mygraphics.ReleaseHdc(dc1);
memoryGraphics.ReleaseHdc(dc2);
}
private void printDocument1_PrintPage(System.Object sender, System.Drawing.Printing.PrintPageEventArgs e)
{
e.Graphics.DrawImage(memory