Display the result of a command prompt in Windows 10

Question

I'm making an application where I have to enable and disable the UWF in Windows 10. But I want to intercept the success or failure, the problem is that when I only displays a letter.

string output = string.Empty;
        string error = string.Empty;


        ProcessStartInfo processStartInfo = new ProcessStartInfo("cmd", "/c uwfmgr.exe volume protect c:");
        processStartInfo.RedirectStandardOutput = true;
        processStartInfo.RedirectStandardError = true;

        processStartInfo.UseShellExecute = false;
        processStartInfo.Verb = "runas";
        Process process = Process.Start(processStartInfo);

        using (StreamReader streamReader = process.StandardOutput)
        {
            output = streamReader.ReadToEnd();
        }

        using (StreamReader streamReader = process.StandardError)
        {
            error = streamReader.ReadToEnd();
        }

        if (!string.IsNullOrEmpty(error))
        {
            MessageBox.Show("Error: " + error);
            return;
        }
        MessageBox.Show("OK: " + output);

Here comes the message box "OK U"

Thanks

What output you get when you run same command in cmd.exe ? – Vandita Mar 30 '17 at 10:41 — Vandita, Mar 30 '17 at 10:41

score 0 · Answer 1 · answered Mar 30 '17 at 12:58

Thank you for your reply. I tried to read the articles but given my lack of experience I can apply what it says, Could you give me a little extra help? The thing I noticed is that I can enable the UWF only if you use the following code

ProcessStartInfo processStartInfo = new ProcessStartInfo("cmd", "/k uwfmgr.exe volume protect " + cmbBox_Disk.SelectedItem.ToString().Substring(0, 2) + " & exit");
processStartInfo.CreateNoWindow = false;
processStartInfo.WindowStyle = ProcessWindowStyle.Normal;
processStartInfo.UseShellExecute = true;
processStartInfo.Verb = "runas";
Process process = Process.Start(processStartInfo);


processStartInfo = new ProcessStartInfo("cmd", "/k uwfmgr.exe filter enable & exit");
processStartInfo.CreateNoWindow = false;
processStartInfo.WindowStyle = ProcessWindowStyle.Normal;
processStartInfo.UseShellExecute = true;
processStartInfo.Verb = "runas";
process = Process.Start(processStartInfo);

but the problem is that in this way if there is an error I can not agree with the user.

You should delete this answer - you don't want to ask more questions in an answer :-) — Clay, Mar 30 '17 at 13:16
I tried to add it in a comment, but told me that there were too many characters — fede186, Mar 30 '17 at 13:23
I added code to my answer - and edited it several times...see if it does what you want now. :-) — Clay, Mar 30 '17 at 13:37

score 0 · Answer 2 · answered Oct 18 '18 at 07:12

You can read the output of the shell, see this answer:

Process.start: how to get the output?

Unfortunately there is no good way to detect errors using process. It would be better to use WMI and UWF's WMI provider:

See: https://learn.microsoft.com/en-us/windows-hardware/customize/enterprise/uwf-wmi-provider-reference

Make sure you read the docs thoroughly though. For example, in order to protect a volume you need to run Protect(); on an instance which has 'currentSession = false'. This instance needs to be created by yourself. It has some small caveats here an there.

Display the result of a command prompt in Windows 10

2 Answers2