打印整个窗体 但是PictureBox和LineShape打不出来 请高手赐教！
我想打印整个窗体，这个窗体不显示，lable和条码控件能打出来  但是PictureBox和LineShape（VB里的画线）打出来空白的，小弟新手，请高手帮帮忙
我用的打印方法：

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

{

    Bitmap bit = new Bitmap(frm.Width, frm.Height);

    frm.DrawToBitmap(bit, new Rectangle(0, 0, frm.Width, frm.Height));

    bit.Save("D://AAA.jpg", System.Drawing.Imaging.ImageFormat.Jpeg);

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

    bit.Dispose();

}

------解决方案--------------------
自己搞定了

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

        {

            foreach (Control c in frm.Controls)

            {

                if (c is UserLable)

                {

                    e.Graphics.DrawString(c.Text, c.Font,

                         new SolidBrush(c.ForeColor), c.Location);

                }

                else if (c is PictureBox)

                {

                    PictureBox b = (PictureBox)c;

                    e.Graphics.DrawImage(b.Image, c.Location.X,

                         c.Location.Y, c.Width, c.Height);

                }

                else if (c is BarcodeControl)

                {

                    BarcodeControl b = (BarcodeControl)c;

                    Bitmap bit = new Bitmap(b.Width, b.Height);

                    b.DrawToBitmap(bit, new Rectangle(0, 0, b.Width, b.Height));

                    e.Graphics.DrawImage(bit, b.Location.X,b.Location.