/// <summary>
        /// 取得打印比例坐标转换参数
        /// </summary>
        private STYLE_CONVERT GetStyleConvert()
        {
            STYLE_CONVERT style = new STYLE_CONVERT();
            Graphics      g     = Application.OpenForms[0].CreateGraphics();

            style.xPixPermm   = g.DpiX / 254.0f; //每0.1mm对应屏幕上的点数,用于计算偏移量
            style.yPixPermm   = g.DpiY / 254.0f;
            style.xScrDPIDiff = g.DpiX / 96.0f;  // 等于1
            style.yScrDPIDiff = g.DpiY / 96.0f;
            style.fDPIX       = g.DpiX;          //屏幕DPI
            style.fDPIY       = g.DpiY;
            g.Dispose();
            return(style);
        }
        public bool Print(Graphics g)
        {
            g.PageUnit        = GraphicsUnit.Pixel;
            g.SmoothingMode   = SmoothingMode.HighQuality;
            g.PixelOffsetMode = PixelOffsetMode.HighQuality;

            STYLE_CONVERT style      = GetStyleConvert();
            float         xPixPerIn  = g.DpiX / style.fDPIX; // 打印机DPI/屏幕DPI
            float         yPixPerIn  = g.DpiY / style.fDPIY;
            float         iTopOffset = 0;                    //自动调整位置的偏移量 对应屏幕DPI

            Control ctrl = pcbFormBack;
            //int iLeft = _PageDisplayForm.LeftMarign;
            //int iTop = _PageDisplayForm.TopMarign;
            //int iWidth = _PageDisplayForm.PageWidth;
            //int iHeight = _PageDisplayForm.PageHeight;

            Pen        p         = new Pen(Color.Black, 1f);
            RectangleF rectBound = new RectangleF();
            SolidBrush foreBrush = new SolidBrush(Color.Black);

            g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;


            foreach (Control item in ctrl.Controls)
            {
                if (item.Visible)
                {
                    Font         regularFont = new Font("宋体", item.Font.Size);//item.Font;
                    StringFormat strFormat   = new StringFormat();
                    strFormat.Alignment     = StringAlignment.Near;
                    strFormat.LineAlignment = StringAlignment.Near;

                    Form_POS sobj = new Form_POS();
                    //原来存的值为去掉边界后的像素值,边界单位为0.1mm
                    sobj.Pos_Left   = item.Left * style.xScrDPIDiff;
                    sobj.Pos_Top    = item.Top * style.yScrDPIDiff;
                    sobj.Pos_Right  = item.Right * style.xScrDPIDiff;
                    sobj.Pos_Bottom = item.Bottom * style.yScrDPIDiff;

                    //坐标变换到屏幕位置, 自动调整尺寸是需要加上iTopOffset
                    //sobj.Pos_Top += _PageDisplayForm.TopMarign * style.yPixPermm + iTopOffset;
                    //sobj.Pos_Bottom += _PageDisplayForm.TopMarign * style.yPixPermm + iTopOffset;

                    //sobj.Pos_Left += _PageDisplayForm.LeftMarign * style.xPixPermm;
                    //sobj.Pos_Right += _PageDisplayForm.LeftMarign * style.xPixPermm;

                    //由屏幕位置变换到打印机位置
                    sobj.Pos_Top    = sobj.Pos_Top * yPixPerIn;
                    sobj.Pos_Bottom = sobj.Pos_Bottom * yPixPerIn;
                    sobj.Pos_Left   = sobj.Pos_Left * xPixPerIn;
                    sobj.Pos_Right  = sobj.Pos_Right * xPixPerIn;

                    rectBound.X      = sobj.Pos_Left;
                    rectBound.Y      = sobj.Pos_Top;
                    rectBound.Width  = sobj.Width();
                    rectBound.Height = sobj.Height();

                    #region SingleLine
                    if (item is SingleLineX || item is SingleLineY)
                    {
                        g.FillRectangle(foreBrush, rectBound);
                    }
                    #endregion
                    #region Label
                    else if (item is Label)
                    {
                        Label objItem = item as Label;

                        if (objItem.TextAlign == ContentAlignment.MiddleCenter)
                        {
                            strFormat.Alignment     = StringAlignment.Center;
                            strFormat.LineAlignment = StringAlignment.Center;
                        }
                        else
                        {
                            strFormat.Alignment     = StringAlignment.Near;
                            strFormat.LineAlignment = StringAlignment.Center;
                        }

                        g.DrawString(objItem.Text, GetFont(objItem.Size, objItem.Text, regularFont), foreBrush, rectBound, strFormat);
                    }
                    #endregion
                    #region DateTimePicker
                    else if (item is DateTimePicker)
                    {
                        DateTimePicker objItem = item as DateTimePicker;

                        strFormat.Alignment     = StringAlignment.Near;
                        strFormat.LineAlignment = StringAlignment.Center;
                        g.DrawString(objItem.Value.ToString(objItem.CustomFormat), regularFont,
                                     new SolidBrush(objItem.ForeColor), rectBound, strFormat);
                    }
                    #endregion
                    #region TextBox
                    else if (item is TextBox)
                    {
                        TextBox objItem = item as TextBox;
                        if (objItem.Visible)
                        {
                            if (objItem.TextAlign == HorizontalAlignment.Center)
                            {
                                strFormat.Alignment = StringAlignment.Center;
                            }
                            else if (objItem.TextAlign == HorizontalAlignment.Left)
                            {
                                strFormat.Alignment = StringAlignment.Near;
                            }
                            else
                            {
                                strFormat.Alignment = StringAlignment.Far;
                            }
                            strFormat.LineAlignment = StringAlignment.Center;

                            g.DrawString(objItem.Text, GetFont(objItem.Size, objItem.Text, regularFont),
                                         new SolidBrush(objItem.ForeColor), rectBound, strFormat);
                        }
                    }
                    #endregion
                    #region CheckBox
                    else if (item is CheckBox)
                    {
                        CheckBox objItem = item as CheckBox;

                        if (objItem.Checked)
                        {
                            strFormat.Alignment     = StringAlignment.Center;
                            strFormat.LineAlignment = StringAlignment.Center;
                            g.DrawString("√", regularFont, new SolidBrush(objItem.ForeColor), rectBound, strFormat);
                        }
                        g.DrawString(objItem.Text, GetFont(objItem.Size, objItem.Text, regularFont),
                                     new SolidBrush(objItem.ForeColor), rectBound, strFormat);
                    }
                    #endregion
                    #region radioButton
                    else if (item is RadioButton)
                    {
                        RadioButton objItem = item as RadioButton;

                        if (objItem.Checked)
                        {
                            strFormat.Alignment     = StringAlignment.Center;
                            strFormat.LineAlignment = StringAlignment.Center;
                            g.DrawString("√", regularFont, new SolidBrush(objItem.ForeColor), rectBound, strFormat);
                        }
                        g.DrawString(objItem.Text, GetFont(objItem.Size, objItem.Text, regularFont),
                                     new SolidBrush(objItem.ForeColor), rectBound, strFormat);
                    }
                    #endregion
                }
            }
            return(true);
        }