If I use the code down below to redirect standardinput and standardoutput to a textbox, everything is working, except for lines which require interactive input from the user. For instance, if you execute the command dir /p c:\windows, the whole content of the directory is displayed. The /p is not being honored. Same thing if you execute a script which requires user input. Here is a small example:
@echo off
set /p "id=Enter ID: "
Echo The user ID entered is: %id%
When you execute this in a normal cmd window, the output is like this:
Enter ID: MyUser
The user ID entered is: MyUser
But when I execute the same script through my form with redirected StandardInput and StandardOutput, the result looks like this:
Enter ID: The user ID entered is:
So here, the /p to prompt for input is also ignored. Is there any way to make this work the same way as in a standard cmd.exe windows? Thanks for any help in advance!
Kind Regards, Eric
Public Class Form1
Dim WithEvents P As New Process
Dim SW As System.IO.StreamWriter
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
P.EnableRaisingEvents = True
Me.Text = "My title"
AddHandler P.OutputDataReceived, AddressOf DisplayOutput
P.StartInfo.CreateNoWindow() = True
P.StartInfo.UseShellExecute = False
P.StartInfo.RedirectStandardInput = True
P.StartInfo.RedirectStandardOutput = True
P.StartInfo.FileName = "cmd.exe"
P.StartInfo.Arguments = ""
P.Start()
P.SynchronizingObject = Me
P.BeginOutputReadLine()
SW = P.StandardInput
SW.WriteLine()
End Sub
Private Sub DisplayOutput(ByVal sendingProcess As Object, ByVal output As DataReceivedEventArgs)
TextBox1.AppendText(output.Data() & vbCrLf)
End Sub
Private Sub Textbox2_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox2.KeyPress
If e.KeyChar = Chr(Keys.Return) Then
SW.WriteLine(TextBox2.Text)
End If
End Sub
Private Sub myProcess_Exited(ByVal sender As Object, ByVal e As System.EventArgs) Handles P.Exited
Me.Close()
End Sub End Class
