WPF打印之一

这个示例演示了如何进行一个最简单的打印工作，为此需要引入两个dll:System.Windows.Forms,System.Drawing 

 　/// <summary>
    /// 打印类
    /// </summary>
    public class PrintService
    {
        public PrintService()
        {
            //创建一个PrintDialog的实例
            System.Windows.Forms.PrintDialog dlg = new System.Windows.Forms.PrintDialog();

            //创建一个PrintDocument的实例
            System.Drawing.Printing.PrintDocument docToPrint = new System.Drawing.Printing.PrintDocument();

            //将事件处理函数添加到PrintDocument的PrintPage事件中
            docToPrint.PrintPage += new System.Drawing.Printing.PrintPageEventHandler(docToPrint_PrintPage);

            //把PrintDialog的Document属性设为上面配置好的PrintDocument的实例
            dlg.Document = docToPrint;

            //根据用户的选择，开始打印
            if (dlg.ShowDialog() == System.Windows.Forms.DialogResult.OK)
            {
                docToPrint.Print();//开始打印
            }
        }

        //设置打印机开始打印的事件处理函数
        private void docToPrint_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
        {
            e.Graphics.DrawString("Hello, world!", new System.Drawing.Font("Arial", 16, System.Drawing.FontStyle.Regular), System.Drawing.Brushes.Black, 100, 100);
        }
    }