C# 靜默打印多張圖片可指定打印機

最近有需求要用winform打印圖片，而且不要彈出框。

本人親測可用的。找了很久沒找到方法的拿去用吧。

大牛們看這哪裏寫的有問題給提點建議。

不說廢話了直接上代碼，這是我整理的。 
 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing.Printing;
using System.Drawing;
using System.Windows.Forms;

namespace tools
{
    /// <summary>
    /// 說明：打印圖片
    /// 作者：z_344791576
    /// </summary>
    public class PrintImage
    {
        public PrintImage()
        {
            this.docToPrint.PrintPage += new PrintPageEventHandler(docToPrint_PrintPage);
        }
        private PrintDocument pd = new PrintDocument();
        private Image img;

        /// <summary>
        /// 說明：開始打印多張圖片
        /// </summary>
        /// <param name="image">圖片集合</param>
        /// <param name="printerName">打印機名稱</param>
        public void StartPrints(List<Image> imageList, string printerName)
        {
            PrinterSettings ps = new PrinterSettings();
            ps.PrinterName = printerName;
            pd.PrinterSettings = ps;
            pd.PrintController = new System.Drawing.Printing.StandardPrintController();
            for (int i = 0; i < imageList.Count; i++)
            {
                this.img = imageList[i];
                pd.Print();//開始打印
            ｝
        }

        /// <summary>
        /// 說明：開始打印單張圖片
        /// </summary>
        /// <param name="image">圖片集合</param>
        /// <param name="printerName">打印機名稱</param>
        public void StartPrint(Image image, string printerName)
        {
            PrinterSettings ps = new PrinterSettings();
            ps.PrinterName = printerName;
            pd.PrinterSettings = ps;
            pd.PrintController = new System.Drawing.Printing.StandardPrintController();
            this.img = image;
            pd.Print();//開始打印
        }

        /// <summary>
        /// 說明：設置打印機開始打印的事件處理函數
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void pd_PrintPage(object sender, PrintPageEventArgs e)
        {
            Image image = img;
            int x = e.MarginBounds.X;
            int y = e.MarginBounds.Y;
            int width = image.Width;
            int height = image.Height;
            System.Drawing.Rectangle destRect = new System.Drawing.Rectangle(x, y, width, height);
            e.Graphics.DrawImage(image, destRect, 0, 0, image.Width, image.Height, System.Drawing.GraphicsUnit.Pixel);

        }
    }
}

另外附上將url轉Image的方法

        /// <summary>
        /// 說明：url路徑轉Image
        /// </summary>
        /// <param name="url"></param>
        /// <returns></returns>
        public Image UrlToImage(string url)
        {
            WebClient wcUrl = new WebClient();
            byte[] imageBytes = wcUrl.DownloadData(url);
            using (MemoryStream ms = new MemoryStream(imageBytes))
            {
                return Image.FromStream(ms);
            }
        }