Why does not WebBrowser show reCaptchas?

Question

Why does not WebBrowser show reCaptchas?

Navigation

#1 by (2 votes)

1

I set to navigate normally on this site. But in addition to deforming the site's Textbox, it still does not display reCaptchas. The ScriptErros website. But other sites do, but it does not look like that. What can it be?

FORM

CHROME

recaptcha c# webbrowser

asked by anonymous 21.04.2017 / 03:24

1 answer

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score 2 · Accepted Answer

You need to set the version of Webbrowser to 11, so implement the method below in your main form:

Do not forget to using Microsoft.Win32;

    public void VerifyVersion(WebBrowser webbrowser)
    {
        string appName = "";
        try
        {
            appName = System.Diagnostics.Process.GetCurrentProcess().ProcessName + ".exe";

            RegistryKey fbeKey = null;
            ////For 64 bit Machine 
            fbeKey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey(@"SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\FeatureControl\FEATURE_BROWSER_EMULATION", true);
            if (fbeKey == null)
                fbeKey = Registry.CurrentUser.CreateSubKey(@"SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\FeatureControl\FEATURE_BROWSER_EMULATION");
            using (fbeKey)
            {
                fbeKey.SetValue(appName, 11000, RegistryValueKind.DWord);
            }


            //For 32 bit Machine 
            fbeKey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey(@"SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION", true);
            if (fbeKey == null)
                fbeKey = Registry.CurrentUser.CreateSubKey(@"SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION");
            using (fbeKey)
            {
                fbeKey.SetValue(appName, 11000, RegistryValueKind.DWord);
            }
        }

        catch (Exception ex)
        {
            MessageBox.Show(appName + "\n" + ex.ToString(), "Unexpected error setting browser mode!");
        }
    }

How to use:

VerifyVersion(webbrowser1);

In your case

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using Microsoft.Win32;

namespace Fast_Bitcoin
{
    public partial class freeBitcoinForm : Form
    {
        public freeBitcoinForm()
        {
            InitializeComponent();
            VerifyVersion(webbrowser1);
        }

        private void freeBitcoinForm_Load(object sender, EventArgs e)
        {

        }
        public void VerifyVersion(WebBrowser webbrowser)
        {
            string appName = "";
            try
            {
                appName = System.Diagnostics.Process.GetCurrentProcess().ProcessName + ".exe";

                RegistryKey fbeKey = null;
                ////For 64 bit Machine 
                fbeKey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey(@"SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\FeatureControl\FEATURE_BROWSER_EMULATION", true);
                if (fbeKey == null)
                    fbeKey = Registry.CurrentUser.CreateSubKey(@"SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\FeatureControl\FEATURE_BROWSER_EMULATION");
                using (fbeKey)
                {
                    fbeKey.SetValue(appName, 11000, RegistryValueKind.DWord);
                }


                //For 32 bit Machine 
                fbeKey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey(@"SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION", true);
                if (fbeKey == null)
                    fbeKey = Registry.CurrentUser.CreateSubKey(@"SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION");
                using (fbeKey)
                {
                    fbeKey.SetValue(appName, 11000, RegistryValueKind.DWord);
                }
            }

            catch (Exception ex)
            {
                MessageBox.Show(appName + "\n" + ex.ToString(), "Unexpected error setting browser mode!");
            }
        }

    }
}

Explanation:

You need to change the windows registry so that your system understands that your webbrowser has to run in version 11.

You have to change the registry FEATURE_BROWSER_EMULATION

fbeKey.SetValue(appName, 11000, RegistryValueKind.DWord);

Above we are setting the version to 11, if we want other version follows the table below

Versão do IE    | Número para registro
    7           |   7000
    8           |   8000
    8 Standards |   8888
    9           |   9000
    9 Standards |   9999
    10          |  10000
    10 Standards|  10001
    11          |  11000
    11 Edge     |  11001