Forum posts for Defrag.exe

Real Time CMD Output on Windows Defrag.exe

I am trying to capture the output on CMD on REAL TIME. I want to read every line that's being output. The following is my code:

private void Defrag2()
{
string osDrive = Path.GetPathRoot(Environment.SystemDirectory);
Process Psi = new Process();
System.Text.Encoding SysEncoding = System.Text.Encoding.GetEncoding(System.Globalization.CultureInfo.CurrentUICulture.TextInfo.OEMCodePage);
Psi.StartInfo = new ProcessStartInfo('cmd', @'/c defrag ' + osDrive + ' /a /u')
{
UseShellExecute = false,
RedirectStandardInput = true,
RedirectStandardOutput = true,
RedirectStandardError = true,
CreateNoWindow = true,
StandardOutputEncoding = SysEncoding,
StandardErrorEncoding = SysEncoding

};
Psi.EnableRaisingEvents = true;
Psi.OutputDataReceived += new DataReceivedEventHandler(OutPutDataRecieved);
Psi.Start();
Psi.BeginOutputReadLine();
}

void OutPutDataRecieved(object sender, DataReceivedEventArgs e)
{
this.DefStat(e.Data);
}

private void DefStat(string Line)
{
if (Line != null)
{
if (Line.Contains('do not need to def'))
{
defragstatustb.Invoke(new MethodInvoker(() => defragstatustb.Text = 'You do not need to defrag this computer.'));
}
if (defragRTB.InvokeRequired)
{ defragRTB.Invoke(new MethodInvoker(() => defragRTB.AppendText(Line + Environment.NewLine))); }
}
}


That code works well on Capturing CMD output in real time, EXCEPT when I try to run the Windows Defrag in CMD. For example: If I try to enter a command like 'Dir', it reads the output in real time, however if I try to run something like 'Defrag C: /f /u', it only reads the output ONLY after it completes the operation.

Any idea how to get this working ? Thank you.

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