CODEWITHSUNDEEP
vb.net
ScotterMonkey
ScotterMonkey

Reputation: 1044

Using "process" to call another program. Wanting to pass info back to parent program

I know how to send parameters to the child program via startinfo.arguments. I think I even know how to "listen" to anything the child might "say" via standardoutput.readline. What I don't know is what method to use for the child to "speak" back to the parent. Here is the code I have so far (on the parent side):

Dim proc As Process
Dim bRunProgramWorked As Boolean = True
Try
    proc = New Process
    Dim procInfo As New ProcessStartInfo
    proc.StartInfo.FileName = strPathUpgradeEXE
    proc.StartInfo.Arguments = param1 & " " & param2 & " " & param3
    proc.StartInfo.WindowStyle = ProcessWindowStyle.Hidden
    'proc.StartInfo.WindowStyle = ProcessWindowStyle.Maximized
    proc.StartInfo.UseShellExecute = False
    proc.StartInfo.CreateNoWindow = True
    proc.StartInfo.RedirectStandardOutput = True
    'proc.StartInfo.RedirectStandardError = True
    proc.Start()
    Dim output1 As String = proc.StandardOutput.ReadLine
    Dim output2 As String = proc.StandardOutput.ReadLine
    proc.WaitForExit()
    proc.Close()
    proc.Dispose()
Catch ex As Exception
    LogIt(strMyBaseID, "Error at trying to run PVT-Export. " & ex.ToString)
    bRunProgramWorked = False
End Try

Upvotes: 1

Views: 219

Answers (1)

SLaks
SLaks

Reputation: 887657

The child process needs to write to Console.Out.

Upvotes: 2

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