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Hello,
I'm having trouble writing to a file. I can open notepad ok, but I cannot write a string to it. What am missing here? TIA.

Imports System.IO
Module Module1

    Sub Main()
        Dim start_info As New ProcessStartInfo("notepad.exe")
        start_info.UseShellExecute = False
        start_info.ErrorDialog = False
        start_info.RedirectStandardInput = True
        start_info.RedirectStandardOutput = True
        start_info.RedirectStandardError = True

        Dim proc As New Process
        proc.StartInfo = start_info
        proc.Start()

        Dim stdERRreader As StreamReader = proc.StandardError
        Dim stdINwriter As StreamWriter = proc.StandardInput
        Dim stdOUTreader As StreamReader = proc.StandardOutput

        System.Threading.Thread.Sleep(500)
        ' send data
        stdINwriter.WriteLine("TEXT FROM VB")

        stdINwriter.Flush()
        stdINwriter.Dispose()

        ' clean up
        stdERRreader.Close()
        stdINwriter.Close()
        stdOUTreader.Close()
        proc.WaitForExit()
    End Sub
End Module
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Last Post by TheFueley
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You may try SendKeys.Send("TEXT FROM VB") instead of stdINwriter.WriteLine("TEXT FROM VB") SendKeys.Send() sends keystrokes to the active window. However, it's not a very reliable method. If the process you started loses focus, it won't receive those keystrokes.

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You may try SendKeys.Send("TEXT FROM VB") instead of stdINwriter.WriteLine("TEXT FROM VB") SendKeys.Send() sends keystrokes to the active window. However, it's not a very reliable method. If the process you started loses focus, it won't receive those keystrokes.

Shell("Notepad.exe")
use this command to open notepad than u can write

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You may try SendKeys.Send("TEXT FROM VB") instead of stdINwriter.WriteLine("TEXT FROM VB") SendKeys.Send() sends keystrokes to the active window. However, it's not a very reliable method. If the process you started loses focus, it won't receive those keystrokes.

SendKeys is working for me. I make the window active first then make the call to SendKeys.

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