Process.Start Fails When Attempting To Redirect The Output
Nov 17, 2009
I've been working on automating our build processes and wanted to come up with a painless way to run unit tests on a regular basis. To that end I've thrown together a simple app that examines the project files and prepares a list of solutions to test. The prototype works in that the tests are executed with the expected results, but as soon as I try to redirect my output the app bombs on the Process.Start call, complaining that a file could not be found.
I've tried several iterations on what I've seen done elsewhere, including several posts here, but I have yet to get this to work properly.
This works:
Private Function WTF(ByVal aWorkingDirectory As String, ByVal aFileName As String, ByVal aArguments As String) As Boolean
Dim lProcess As New Process()
With lProcess
[Code].....
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Jan 15, 2011
I want to launch a file from a VB program and capture the output of that file in a text document.Here's an example:Process.Start("systeminfo.exe > Data.dat")This doesn't work. I get an error that the file cannot be found. I've tried using Shell instead of Process.Start. I've also tried replacing systeminfo.exe with a variable and replacing the redirect portion with a variable.The ultimate goal is to get the text file e-mailed. So, if it were possible to output to the Clipboard, then paste that to a file or directly into an e-mail client that would also work.
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Sep 28, 2010
My app starts an On-Screen Keyboard process like this:
Dim PID as System.Diagnostics.Process
:
PID = Process.Start("C:WindowsSystem32osk.exe")
:
[CODE]...
It seems to work 90% of the time. However, sometimes the PID.Kill() fails because it says the process already exited. At this point the OSK is always still there on screen. Yes, I know my code should be testing to see if the process is still running before trying to kill it, but given that the OSK is still on screen..
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Mar 1, 2012
I'm trying to redirect the output from a command-line application in VB.NET, and for some reason it fails to redirect the output. Here's my code:
Dim myProcess As Process = New Process
myProcess.StartInfo.FileName = "g++"
myProcess.StartInfo.Arguments = CMDLineCommand
[Code]......
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Aug 27, 2010
I'm, following the tutorial on creating your first program in Visual basic. I'm instructed to start a new project, and select windows form application. When I hit okay I get the following error:"Could not load file or assembly 'Microsoft.Build.Engine, Version 3.5.0.0, culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified."
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Apr 19, 2011
i have an dos exe which take argument, perform its functions and display the output in dos.i need to call the dos file from vb passing the argument without showing the dos window, and get the return values directed to vb textbox.
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Dec 5, 2009
Is it possible to redirect the output of any console application?
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Jan 8, 2012
I am trying to redirect output from a console application and I am only recieving partial data.
Here is an example of the output that I am recieving:
[Code]...
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Dec 21, 2011
I made a Visual Basic program that adds an interface to some Windows network diagnostic tools like Ping and Telnet. Currently the program opens a new DOS window and displays the results. For each system you test or each time you hit the button it opens a new window.
What I want it to do is redirect the output back to the program and display it using a List box or whichever is the best choice for displaying results. I have checked out posts that talk about capturing the text and redirecting it back to the program but I can never get those to work.
Is there an easy answer for this or does it entail a lot of additional coding? I am using Visual Studio 2008.
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Apr 2, 2010
I'd like to have a macro in Visual Studio 2005 that calls a DOS command and redirects the output (stdout and stderr) to a file. Just calling the command and ">" redirecting it will not capture stderr, so there are two parts to this:
calling a DOS command capturing both stderr and stdout to a file during that call
I'd then like to open this file in Visual Studio after the command completes.
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Feb 26, 2010
i have a form app that needs to get the output of a console app in real time.or as close to it as possible.[code]that is my code so far, and it seems to work great for everything other than the actual console app i need it to.when i use it on ping commands it comes up in my text box perfectly.when i use it with my console app (which i don't have access to the source for) it outputs nothing until the app closes, sometimes.it depends on the arguments given. i am 100% sure it is the way the app is written but there is nothing i can do about it.so is there any way to get the desired functionality some other way?
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Feb 18, 2010
Based on the title I'm sure you all understand what I want... So, I need to work with CMD through my app. and I searched google and vbforums and I found some solutions but none of them helped me because all I found was either older version like VB.net 2005 like this topic HERE (and this is exactly what I want) and found some in other languages like c# or c++ that I really don't now them..
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May 26, 2007
send the text from a certain line in the hidden console window to a textbox in the form, but I need this output while the console application is still running in a hidden window. Since I am going to have multiple instances of this console application running, I have assigned their processes to an array and each have a separate "hidden" console window. After I launch these applications (with different arguments assign to them), they require no input and will run until I ".kill them" using the GUI.The console application was written in the old C and it's source code scares me.
I am creating this GUI "bolt on" application for it in VB.NET 2005 to clean up desktop space (save me from 30 console windows) and to be able to start, stop, and monitor them from a single clean GUI.Attempted solutions:I have reviewed the information [URL]But again, that just tells me how to capture the output of it after the console application has exited, which I already know how to do and I do not wish to kill the application just to see a certain line of it's output as it would obviously interrupt what it is doing.
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May 27, 2011
I am running a command on all computers from a list. I am trying to get back a text file that says PASS or FAIL for each computer. I am using the below StreamWriter and function process. The process runs correctly and it rights to both a data file and an error log. The error log however always says PASS for everything. do I know what to set the if consoleOutput = "????" to?
Using swrr As New StreamWriter(ErrorLog, True)
For Each strUserName As String In strLines
Dim ConsoleOutput As String = GetCMDOutput(strUserName, saveFileDialog3.FileName & ".txt",
[code].....
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Nov 27, 2009
Every time I try and redirect input and output of command prompt I have a problem. The debugger itself crashes! Something must really be wrong. What is a good way to launch CMD and send commands to it, receive output.
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Apr 30, 2011
On our software factory grid servers, calling VBCodeProvider.CompileAssemblyFromSource randomly fails.
[Code]...
What does the 128 error code mean ? The version of vbc.exe used is the one in the .NET 2 (SP2) folder. Forcing the compiler to work in a new dedicated temp directory does not help (we update TMP and TEMP env variable on runtime, we checked that each vbc use a dedicated temporary folder based on process id and some static counter)
[Code]...
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Apr 10, 2009
How do I redirect the standard I/O of a process?
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Aug 19, 2010
how to redirect outputs from console to a window form text box,but the console application I'm using is always running real time, thus my .net application hangs until I close the program that is read real time.The code displays the application to a 2nd form with a textbox multi line. Until I close that my entire program hangs and the console application monitored runs.
How do I code it to:
1. Run real time without hanging the entire program.
2. the console app must run at all times. (figured how to hide/ and no window created for it)
Sub Console()
Form2.Show()
Dim myCon As New Process
myCon.StartInfo.UseShellExecute = False
[code].....
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Aug 4, 2009
I'm using Process.Start to start an external command line application and using the StartInfo.Arguments method to send parameters to the application. I imagine I'll need to use a loop... but I can't figure out exactly how yet.I need to send anywhere from 1 - an infinite number of files names to this application. Each file has to be sent one after the other. So once the first one is done, I need to loop back around and past the second one.I can probably use the Directory.GetFiles method to get all of the files, but I don't know how to assign them.
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Feb 24, 2012
Visual Basic 2010 - Net Framework 4.0 Client
I have an application (application #1) running with Administrator privileges on Windows 7.
I want application # 1 to start another application (application #2) without Administrator privileges so application #2 is running as a standard user.
Is there a way to do this? I have been using Process.Start.
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Jun 18, 2011
Here's what I currently have:
[Code]...
I've commented out various things to limit it to specifically this command (example, I can swap mklink out with notepad and it works fine). The command runs fine from a DOS window, but can't be found when I use it this way. I also tried using the SHELL command just to test and I get the same results. No idea why it can't be found, as like I said it executes from the command prompt just fine.
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Oct 22, 2009
I don't know VB very well, but I need to create a wrapper program for any executable that logs the arguments, all input, output and err information:
My wrapper is called: e.g. someApp.exe arg1 arg2
Logs to someApp.log: arg1 arg2
Calls original executable: _someApp.exe arg1 arg2
Must log and forward any console input to _someApp process inputstream
Must log any output and error stream from _someApp process
I'm stuck at point 4 now:
Dim p As New ProcessStartInfo
p.FileName = execute
p.Arguments = Command()
p.UseShellExecute = False
p.CreateNoWindow =
[Code] .....
After _someApp ends I am able to read out and err stream to log it, but I still need to provide my own wrappers input to the process and I want to read out and err stream as it happens.
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Feb 21, 2011
I have a program that starts another program after setting the regkeys basically the program continually syncs the calandar of outlook and another application.I set the regkeys than launch the c:sync.exe app. I have tried a simple process.start and launching the process as a thread and they both do the same thing: The other process starts and works as it should but my main program goes "White screen" or "not responding" until the process.start has exited.
I want the process.start to run in the background so if users click in my main app it responds and truly that they can access the context menu of my main app from the taskbar while the process.start is running.
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May 27, 2010
Trying to create a button that when clicked will check to see if a certain process image is running and if that process is running give the process focus. If the process is not running then start the application.
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Aug 8, 2010
Whats happening is I run the code below and get the following error "The system cannot find the file specified". I've read that with UseShellExecute set to false that you can't use WorkingDirectory.
Dim Password As String = "password"
Dim SecureStringPassword As New System.Security.SecureString
For Each c As Char In Password
[Code].....
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Apr 12, 2010
This code executes "handbrakecli" (a command line application) and places the output into a string:
Dim p As Process = New Process
p.StartInfo.FileName = "handbrakecli"
p.StartInfo.Arguments = "-i [source] -o [destination]"
[code].....
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Dec 8, 2011
How would I go about starting a new process without it being the child of the calling process.
Example:
Main Program (Caller.exe)
process.start("file.exe")
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Jun 24, 2009
i use System.Diagnostics.Process.Start to run a process
example :
Dim p As New System.Diagnostics.Process
p = System.Diagnostics.Process.Start("D:ProjectApplication.exe")
it works perfectly during run time. but after i deploy to server.... this code did nothing, it did not call out this process
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Feb 8, 2012
I am writing an application that in the end needs to execute another executable at some point, the problem is that the executable has dependencies in the directory it runs in that are required to operate. When I use the Process.Start to run the executable it errors out because it's looking for the dependencies in my applications directory.
I tried the startInfo.WorkingDirectory option but that didn't seem to do it either (not sure if I did it right) - here is how I used that:
Process.Start("my.exe").StartInfo.WorkingDirectory = "C:Test"For the life of me I cannot find how to set the "Start In" directory. I looked everywhere, so unless it's under a different name, I'm at a loss.
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Oct 2, 2010
I am trying to create an app that will perform actions on specific times (much like the Windows Task Scheduler). I am currently using Process.Start() to lunch the file (or exe) required by the task. I am initiating a process by calling a file (an .mp3) and the process starts WMP (since it is the default application), so far so good. Now I wan't to kill that process. I know that it is normal behavior for the Process.Start(string, string) to return nothing (null in C#) in this case. So I am asking how can i close WMP when I called it through Process.Start(string, string)??
[Code]...
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