writing commands to Command Prompt Using VB

[natur3]

Hi all,

I am using Visual Studio 2010, VB to compile my program. My program include having to open a command prompt and writing a command to it. and display the output/errors in a textbox. But i can't seems to make it display it in a textbox and it opens ALOT of command prompts windows. Any help would be greatly appreaciated! Below is the my code:

 
Private Sub btnStart_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnStart.Click
        Try
            Dim P As New Process
            With P
                .StartInfo.FileName = "cmd.exe"
                .StartInfo.RedirectStandardOutput = True
                .StartInfo.UseShellExecute = False
                .Start()
                SendKeys.Send("julian.exe. -input mic -C julian.jconf" & "{enter}")
                Output.Text &= .StandardOutput.ReadToEnd()
                .WaitForExit()
            End With
        Catch ex As Exception
        End Try
    End Sub

[Atheist]

Welcome to VBForums.

Why not execute the julian.exe process directly? Is there a reason why you must first open up the command prompt, and then launch julian.exe from it?

[natur3]

Hi,

I tried running julian.exe directly but it gave me this error
"A first chance exception of type 'System.ComponentModel.Win32Exception' occurred in System.dll"

Maybe it's because julian.exe is a linux based program.

[natur3]

When i took out this 2 lines :

.StartInfo.RedirectStandardOutput = True
                .StartInfo.RedirectStandardError = True

It can open the cmd window and run smoothly.

But without the above 2 lines, how do i display the output of the cmd prompt in a textbox?