Silent print HTML file in C # using WPF

EDIT: Completely rewrote the question and added a reward.

Based on many stackoverflow guides and questions, I can now:

• Print multiple pages together as one document.
• Print current content.
• Align the content on the page.
• Print the documents you want.

The solution requires the HTML document to have white space at the bottom and an html style tag {overflow: hidden; } - to hide the scrollbars and allow scrolling for pagination, but I can accept that.

The only remaining problem is that WPF is not displaying parts of the web browser that are off-screen.

This means that if I tilt my computer screen I can print correctly, but if I do not document this bottom,

I tried rendering to a bitmap but when I print the resulting image like my visual the pages are empty.

If you know how to get WPF to fully render, or how to render a bitmap correctly, please help me.

XAML print window: (WPF print only works on UI thread, otherwise nothing is displayed ...)

<Window x:Class="CardLoader2000.PrintWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="PrintWindow" Height="1139" Width="820">
    <Grid x:Name="grid">
        <!--The alignment and size of the webbrowser is reflected in the print. If larger than document
        it will be cut. The width here corresponds to A4 paper width with a little margin-->
        <WebBrowser x:Name="webBrowser" Height="1089" Width="770" VerticalAlignment="Top" Margin="0,10,0,0"/>
    </Grid>
</Window>

      

        
        
        
      

    

Print window with code:

public partial class PrintWindow : Window
    {
        public PrintWindow(string path)
        {
            InitializeComponent();

            FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read);

            webBrowser.NavigateToStream(fs);

            ContentRendered += OnContentRendered;
        }

        private void OnContentRendered(object sender, EventArgs eventArgs)
        {
            PrintDialog pd = new PrintDialog
            {
                PrintTicket = new PrintTicket
                {
                    Duplexing = Duplexing.TwoSidedLongEdge,
                    OutputColor = OutputColor.Monochrome,
                    PageOrientation = PageOrientation.Portrait,
                    PageMediaSize = new PageMediaSize(794, 1122),
                    InputBin = InputBin.AutoSelect
                }
            };

            //Ok, final TODO: Page only renders what is on the PC screen...
            WebPaginator paginator = new WebPaginator(webBrowser, 1089, 1122, 794);

            pd.PrintDocument(paginator, "CustomerLetter");

            Close();
        }
    }

      

        
        
        
      

    

Custom pointer:

public class WebPaginator : DocumentPaginator
    {
        private readonly WebBrowser webBrowser;
        private readonly int pageScroll;
        private Size pageSize;

        public WebPaginator(WebBrowser webBrowser, int pageScroll, double pageHeight, double pageWidth)
        {
            this.webBrowser = webBrowser;
            this.pageScroll = pageScroll;
            pageSize = new Size(pageWidth, pageHeight);
        }

        public override DocumentPage GetPage(int pageNumber)
        {
            HTMLDocument htmlDoc = webBrowser.Document as HTMLDocument;
            if (htmlDoc != null) htmlDoc.parentWindow.scrollTo(0, pageScroll * pageNumber);
            Rect area = new Rect(pageSize);

            return new DocumentPage(webBrowser, pageSize, area, area);
        }

        public override bool IsPageCountValid
        {
            get { return true; }
        }

        /// <summary>
        /// Returns one less than actual length.
        /// Last page should be whitespace, used for scrolling.
        /// </summary>
        public override int PageCount
        {
            get
            {
                var doc = (IHTMLDocument2)webBrowser.Document;
                var height = ((IHTMLElement2)doc.body).scrollHeight;
                int tempVal = height*10/pageScroll;
                tempVal = tempVal%10 == 0
                    ? Math.Max(height/pageScroll, 1)
                    : height/pageScroll + 1;
                return tempVal > 1 ? tempVal-1 : tempVal;
            }
        }

        public override Size PageSize
        {
            get
            {
                return pageSize;
            }
            set
            {
                pageSize = value;
            }
        }

        /// <summary>
        /// Can be null.
        /// </summary>
        public override IDocumentPaginatorSource Source
        {
            get
            {
                return null;
            }
        }
    }