return value of EXE

[Heike]

I am developing an EXE (type: Windows Application) in VB.NET. This EXE is called by an external program. But unfortunately it is necessary to return a value to that external program. Is there a possibility to do so? If yes, how?

[Frans C]

Although I have never used it before, the System.Environment class has an Exit method which has a parameter to set the exit code for the process. If the other application is developed in a .NET language as well, you can use the ExitCode property of the System.Diagnostics.Process class to read it. If the other application is not developed in a .NET language, you can use the GetExitCodeProcess API function.

[Heike]

Thanks.
It seems to be so easy; but it isn't.
This is my code (a very short version):

Sub Main()
    Dim args() As String
    Dim i As Integer
    Dim blnOK As Boolean = True

    args = Environment.GetCommandLineArgs
    If args.Length > 1 Then
        mudtArgs = New EingabeParameter()

        For i = 1 To args.Length - 1
            MsgBox("Args(" & i & ") = " & args(i))
        Next

    End If

    Environment.Exit(42)
End Sub

The calling application is no .NET written application. But it does use the GetExitCodeProcess API function and all I get (in a MsgBox) is 0. Any idea?

[Pirate]

Originally posted by Frans C
Although I have never used it before, the System.Environment class has an Exit method which has a parameter to set the exit code for the process. If the other application is developed in a .NET language as well, you can use the ExitCode property of the System.Diagnostics.Process class to read it. If the other application is not developed in a .NET language, you can use the GetExitCodeProcess API function.

I'don't think ExitCode Porperty would do this .It's job only to get the result of an exiting an extrenal app .Zero successful , non-zero results in error .

[Frans C]

Like I said, I have never used it before.
If it doesn't work, I'm afraid I can't help you.