How to print background image in webBrowser control

问题

I want to print the background-images through my web browser control.

    body {
        background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg%20xmlns%20%3D%20%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20version%20%3D%20%271.1%27%20height%20%3D%20%27100px%27%20width%20%3D%20%27100px%27%3E%3Ctext%20transform%20%3D%20%27translate(20%2C%20100)%20rotate(-45)%27%20fill%20%3D%20%27rgb(245%2C45%2C45)%27%20font-size%20%3D%20%2720%27%3E%20watermark%20%3C%2Ftext%3E%3C%2Fsvg%3E");
    }

string styledDocTest = StyleStatementDoc(statement,true);
string HtmlDocTest = EvalStatement(styledDocTest, statement.StatementLanguage);
webBrowserTest = new System.Windows.Forms.WebBrowser();
webBrowserTest.SetHtmlContent(HtmlDocTest , $@"{new Uri(Application.StartupPath)}/");

 webBrowserTest.Print();

How to Keep background images during printing.

回答1:

There is a Print Background Colors and Images setting in Page Setup dialog which is shared between Web Browser Control and Internet Explorer.

Page setup settings for Microsoft Internet Explorer are stored in the following registry key:

HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\PageSetup

Print Background Colors and Images value is stored in Print_Background key which can be yes or no. You can change the setting using code, but just keep in mind, these values are system-wide settings and will affect all instances of the WebBrowser control and Internet Explorer for the current user:

using (var key = Microsoft.Win32.Registry.CurrentUser.OpenSubKey(
    @"Software\Microsoft\Internet Explorer\PageSetup", true))
{
    key.SetValue("Print_Background", "yes", Microsoft.Win32.RegistryValueKind.String);
    key.Close();
}

Here is the test html that I used:

<html>
  <head>
    <style>
     body { background-image: url("https://www.google.com/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png"); } 
    </style>
  </head>
  <body>
  </body>
</html>

来源：https://stackoverflow.com/questions/58959503/how-to-print-background-image-in-webbrowser-control

标签

html

winforms

windows-10

webbrowser-control