从Windows服务打印html文档,无需打印对话框

using System;
using System.Windows.Forms;

namespace WindowsServicePrintHTML
{
    public partial class PrintHTML : Form
    {
        public PrintHTML()
        {
            InitializeComponent();
            WebBrowser webBrowser = new WebBrowser();
            webBrowser.DocumentCompleted += WebBrowser_DocumentCompleted;
            webBrowser.ScriptErrorsSuppressed = true;
            webBrowser.Navigate("file:///" + htmlFilePath);
        }

        private void WebBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
        {
            WebBrowser webBrowser = (WebBrowser)sender;
            webBrowser.ShowPrintDialog();
            Application.Exit();
        }
    }
}