calling .exe from console application

Posted on 2011-10-12
Medium Priority
Last Modified: 2012-08-14
I had an .exe which returns a string

i want to test whether it really returns a string...

so how can i do that...

can i create a console application to call that .exe

i need to pass an argument along with that .exe

suppose let us say that the .exe application is mytest.exe

i called it from command line as below...

mytest a b c

it should return abcabcabc

code is written properly and .exe is build

only thing i need to test is i want to call this .exe from a .net console application and handle the return type from this .exe

so can some one send me a sample console application of how to call .exe  with parameters which returns a string
Question by:shragi
LVL 48

Expert Comment

ID: 36957954
But in your applications you can check what args was passed.
LVL 75

Expert Comment

by:käµfm³d 👽
ID: 36958046
What do you mean by, "I had an .exe which returns a string." Console applications typically return integer values indicating a success/failure code. Are you saying you are writing a string out to the Console window? If so, that is not actually returning anything; it is just writing something to your application's STDOUT.
LVL 17

Accepted Solution

Carlos Villegas earned 2000 total points
ID: 36958237
Hello, with this code you can run an external app and capture the text wrote by that external application to it standard output (what I think you meant when you said returns a string):
Sub RunMyExternalApp()
    Dim myExternalAppExePath As String = "c:\temp\mytest.exe"
    Dim myExternalAppExeArguments As String = "a b c"

    Dim psi As New System.Diagnostics.ProcessStartInfo(myExternalAppExePath, myExternalAppExeArguments)
    psi.UseShellExecute = False
    psi.RedirectStandardOutput = True

    Dim myStandardOutputText As String
    Using myProcess As System.Diagnostics.Process = Process.Start(psi)
        ' Get the Standard Output Text
        myStandardOutputText = myProcess.StandardOutput.ReadToEnd()
    End Using

    'myStandardOutputText will contain the text wrote by your external app.
End Sub

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