Advice Needed With Visual Basic

[BL4K3Y]

I am in the process of developing a console application using Visual Basic 2010.

I have all the code in place and the application functions as it should but I want to add a little extra to it. I have managed to get it to launch external applications (notepad, file explorer etc) but I want to set arguments for them.

For example, if a process is completed successfully, I want the user to see a message saying something like "Done" or "Failed" if the process wasn't successful. I understand that I need to put the said commands into variables but I am unsure how to do this.

Any help would be greatly appreciated, thank you.

[edds]

I was going to have a go with this, but this page has more than enough information to get you going.

http://visualbasic.about.com/od/usingvbnet/a/prstrt.htm

I assume you're using Process.Start? When you dimension your new process, there's loads of properties, methods and events you can work with.

There should be summat that you can check to see if the process started and completed successfully. As it's a function with overloads you can pass arguments in. If the returned Process is not nothing then it was successful. It'll return nothing if it attaches to an already started process and also you can encapsulate it in a Try/Catch and capture the exceptions.

Good luck.

PS If you want to post a snippet, I may take a look.

[BL4K3Y]

Yes, Process.Start is what I am using .

From what I have read, I need to "parse" the command line output (the line(s) I want) in order to create a pass/fail answer.

Thanks for the link, I will have a read now.


Here is the code that initiates the desired process (the code works fine):

Dim ecc As New ProcessStartInfo
ecc.WorkingDirectory = "D:\xell"
ecc.FileName = "D:\xell\python"
ecc.Arguments = "build.py nanddump.bin CDjasper xell-gggggg.bin"
ecc.UseShellExecute = False
ecc.RedirectStandardInput = True
Process.Start(ecc)

When the command is complete (when ran from the command line, not Visual Basic), it says "Done!". I want another message to display saying "Successful" and then give the user the option to proceed but if if fails, I want to have the application delete the file and go back to the start.

[edds]

When I parse commandline args I just use Split, I have no knowledge of what yours do. I would assume the process you're starting can accept and handle these args?

[BL4K3Y]

I guess this is what I am asking, I don't really know lol.

I want to parse the last line of the command (Done!") and use an IF ELSE statement to say true or false based on if it exists in the output.

If it helps, I managed to achieve this using batch script by using the FOR /F loop command.

[edds]

I don't have any experience of console apps, so no idea if you could capture the word Done.

[BL4K3Y]

Here is a code snippet:

Dim compare As New Process
Dim output As String
compare.StartInfo.WorkingDirectory = "D:\nandpro"
compare.StartInfo.FileName = "C:\Windows\System32\fc"
compare.StartInfo.Arguments = "/b nand1.bin nand2.bin"
compare.StartInfo.UseShellExecute = False
compare.Start()
If output = "FC: no differences encountered" Then
Console.WriteLine("Success")
Console.ReadLine()
Else
Console.WriteLine("Failed")
Console.ReadLine()

FC (file compare) is an external application, the result "FC: no differences encountered" comes back if the NAND dumps match. I want my application to then say "Successful" if this is the case or "Failed" if it isn't.

I hope the code snippet can help you understand more of what I wish to achieve, thanks for any help .

[BL4K3Y]

Hello again.

I am at the stage where I can get a varied output (success/fail message) when the process is executed but now I want to see the actual process output in the console window in "real time" because I need to be able to see what is happening.

From what I have read on the internet, I believe I need to somehow utilise the "OutputDataReceived" event to do this. I have looked at many threads and even looked at some code samples on MSDN but I cannot understand it one bit.

Would somebody be kind enough to show me a sample of how this event works so that I have an idea on how to work with it in my application?

Thanks in advance for any help or advice .