C# 实现图片打印

打印的原理是：生成mdi文件，系统碰到mdi的时候会自动以打印的方式处理。所以，不管用什么模板，什么方式；能在PrintPage事件处理中,生成一张要打印内容的图片就OK了!

C#实现打印源码如下：

#region 打印

       private void btnPrint_Click(object sender, EventArgs e)

       {

           //打印预览

           //PrintPreviewDialog ppd = new PrintPreviewDialog();

           PrintDocument pd = new PrintDocument();

           //设置边距

           Margins margin = new Margins(20, 20, 20, 20);

           pd.DefaultPageSettings.Margins = margin;

           ////纸张设置默认

           //PaperSize pageSize = new PaperSize("First custom size", 800, 600);

           //pd.DefaultPageSettings.PaperSize = pageSize;

           //打印事件设置

           pd.PrintPage += new PrintPageEventHandler(this.pd_PrintPage);

           //ppd.Document = pd;

           //ppd.ShowDialog();

           try

           {

               pd.Print();

           }

           catch (Exception ex)

           {

               MessageBox.Show(ex.Message, "打印出错", MessageBoxButtons.OK, MessageBoxIcon.Error);

               pd.PrintController.OnEndPrint(pd, new PrintEventArgs());

           }

       }

       //打印事件处理

       private void pd_PrintPage(object sender, PrintPageEventArgs e)

       {

           string date = lblDate.Text; //当前日期

           string flowId = lblFlowId.Text; //流水号

           string payDate = PayDate.Year.ToString() + "年" + PayDate.Month.ToString() + "月"; //应收年月

           string adminId = lblAdminId.Text; //操作员编号

           string baseExpense = lblBaseExpense.Text; //应交基本费用

           string fine = lblFine.Text; //罚款数目

           string upExpense = lblUpExpense.Text; //上月上余

           string actualExpense = txtActualExpense.Text; //实际应交费用

           string chineseExpense = DecimalToChinese.ConvertSum(actualExpense); //实际应交费用的中文大写

  //读取图片模板

           Image temp = Image.FromFile(@"Receipts.jpg");

           GetResultIntoImage(ref temp, UserId, flowId, date, baseExpense, fine, upExpense, actualExpense, chineseExpense, payDate, adminId);

           int x = e.MarginBounds.X;

           int y = e.MarginBounds.Y;

           int width = temp.Width;

           int height = temp.Height;

           Rectangle destRect = new Rectangle(x, y, width, height);

           e.Graphics.DrawImage(temp, destRect, 0, 0, temp.Width, temp.Height, System.Drawing.GraphicsUnit.Pixel);

       }

       ///

/// 将收费结果填充到图片模板

///

private void GetResultIntoImage(

ref Image temp,

string userId,

string flowId,

string currentDate,

string baseExpense,

string fine,

string upExpense,

string actualExpense,

string chineseExpense,

string payDate,

string adminName)

{

//读取图片模板

Graphics g = Graphics.FromImage(temp);

Font f = new Font("宋体", 12);

Brush b = new SolidBrush(Color.Black);

//填充数据到图片模板（位置要在制作图片模板的时候度量好）

g.DrawImage(temp, 0, 0, temp.Width, temp.Height);

g.DrawString(userId, f, b, 168, 105);

g.DrawString(UserName, f, b, 166, 134);

g.DrawString(flowId, f, b, 535, 105);

g.DrawString(currentDate, f, b, 535, 134);

g.DrawString(baseExpense, f, b, 219, 202);

g.DrawString(fine, f, b, 372, 202);

g.DrawString(upExpense, f, b, 486, 202);

g.DrawString(actualExpense, f, b, 596, 202);

g.DrawString(chineseExpense, f, b, 196, 238);

g.DrawString(payDate, f, b, 176, 269);

g.DrawString(adminName, f, b, 497, 298);

g.Dispose();

}

#endregion