VS 2010 Can't Access Files Below Root When Using Process To Run A Command Line Program
Feb 4, 2011
I am trying to create a program that downloads audio files via FTP, converts the audio to mp2 if necessary and copies them to a certain directory for consumption by our automation system. (I am a radio station engineer.)I am using the open source converter FFMpeg to convert audio files to mp2. This is a command line exectuted program. Here is the command line that I use to execute the external program with the input and output audio files at the root level: cmd.exe /k ""C:New Folderffmpeg.exe" -i "C:Test.mp3" -y "C:Test.mp2"" This command line works correctly whether I am using Shell() or System.Diagnostics.Process (Process) to execute the external program. I am going the Process route so I can know when the conversion has finished.Now, I really don't want to use the root directory for this but when I go below root with this line using Process the external program will not execute:[code]Can anyone tell me why that line will not work with Process though it works as expected with Shell()? I can't figure out how to stop the external program to get some feedback as to what its problem is.
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Oct 7, 2011
I have been trying to fix this and make this work for pretty much three days now. I already solved one problem being, I can't use the shell on one HDD and create another file onto a different drive other then the drive that the directory of the application is running in.
EX:
If I run a program that is on the C: drive and using a working directory that is on the C: drive, I can not create a file onto the F: drive.
I got this problem when I was just using Shell(Environ$("Comspec") & " /c then the command")
So I decided to use Process()
Dim p = New Process()
p.StartInfo.FileName = "F:Visual Basic ProjectsCode TestingCode TestinginDebugToolsMediaInfoMediaInfo.exe"
[Code]....
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Feb 15, 2012
The code in question is in place, and it works. The project is all but wrapping up. That being said, I would love to find a better way to run this section of code in an x64 system so I have the solution ready for future projects. What I currently have in place is as follows:
Function TimeDelay(vDelay)
Dim vTimmer, vTargetTime
vTimmer = TimeValue(Now)
[CODE]...
Now I know the easy way to achieve my goal would be to use the timer object in Visual Studio. The problem I ran into is I was developing an automated command line program. As such there was nothing I could attach the timer to (that I'm aware of). I just needed to pause the program for a few seconds to allow the DTSX package (SSIS file if you're not familiar) to load the file before I remove it from the staging folder.
While I was doing research for this issue I came across the old Sleep() function (referenced to a library in kernel32 as I understand it...never used this before either). When I tried to use this on my current system (64-bit system) I received stack overflow errors. Additional research lead to something called wow64, but I did not have enough time to fully research what this is / how to use it.
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Aug 4, 2011
Im making a "offline viewer" which uses saved webpages. What do i put to make the program look in the root directory, and so make the program more portable. E.G. if the program is stored in C:Viewer it will look for the webpage under C:ViewerWebpagesI know that in some location formats you can have ...Webpages however i cant seem to find anything like this that works in vb
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Jan 16, 2010
I need do move the file from one App in root/ProgramFiles to another app in program files. It happens thta in Vista/Win7 I can nod do this... And wehn i try to do this im getting frllowin exception: "Access to the path is denied"
this brings me to the question: How can I write move files to the directoris that are other then MyDocuments? For me this is critical as I need to move custom library to existing app if it is not found there, otherwise my app will not work :
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Mar 12, 2011
I've created a very basic WF Shell project which runs an EXE (xyz.exe) in the WF Shell project's Resource folder. I can get a command line working from the Shell to open the other EXE (xyz.exe). But, I can't get code to close the Shell project's other EXE (xyz.exe) once it is opened. The xyz.exe windows called by the Shell continues to stay open even if I pass a "close" command line to the Shell.
The following code (which Paul suggested in another posting) will not close the other (xyz.exe) EXE's running process (when called by the Shell). While the Shell seems to be able to return it's called subordinate EXE's (xyz.exe) ID, not sure how to use such an ID to close its process.
Imports System.Diagnostics
Module Module1
Dim resourceFolder As String = Application.StartupPath & "Resources"
[code]....
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May 29, 2012
i wont code in vb.net get Out Side Process Command Line
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Feb 4, 2011
I am using a CheckedListBox that is populated with Filenames (full path, i.e. C:TestTest.jpg)When I have the files that I want in the CheckedListBox I wish to click a Start Button which will process the list one at a time using an exe program that runs on the Command Line. There are arguments that need to pass to the command line as well as the file location in order for the program to process.I currently have it working but the issue is the loop finishes quickly and it is left up to the CMD.exe to finish the process. What I would like is for the LOOP to wait until each file completes processing before passing the command for the next file in the CheckedListBox.There some reasons I wish for it to work this way.
1) I would like to have a button that can Pause/Restart the Loop.
2) I would like to have a button that can Stop the Loop so the whole process can end.
3) I would like to have the Loop remove each file one by one from the CheckedListBox after it has been processed.
4) I would like to display a Message once all the files have been processed.
5) And if it were possible I would like to report the status either by text or a progress bar showing where it is at in the process.
6) And the ability to add some error handling if possible.
Since the Loop finishes so quickly as it just passes the command to the command line using the & as a seperator it is the command line that is handling the rest of the process. Because of this there is not control over it in the GUI.The code I am using allows the Command Line text to display in the Form so it won't open up a seperate window to run CMD.exe. This is the desired affect as I would like everything to appear to run from within the Form itself.
[Code]...
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Mar 17, 2011
For some reason I can not get the following code to work properly:
[Code]...
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May 6, 2011
I'm using VB.Net to launch multiple command line window (same exe file) through Process.StartInfo. I would like to have those windows running at background without hanging main UI thread that launch them and at the same time able to get the output of those external window to show progress at progress bar.Here is a summary of what I'm trying to achieve but need further advise which way is feasible
- launch multiple exe command through Process.StartInfo
- don't want the external exe to hang my main UI thread
- need to get feedback from external exe to update progress bar which is placed at main UI thread
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Sep 23, 2011
For those of you interestested in mathematics you can find a root of a number in two different ways. Lets say you want to find the 5th root of 27.
[Code]...
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Feb 25, 2010
If e.CommandLine.Count > 0 Then
Dim IncomingCommand As String = e.CommandLine.Item(0).ToString
If IncomingCommand.Substring(0, 2) = "-1" Then
form1.close()
End If
End If
I am trying to make the program close if the -1 string is sent with the program. See my installer allows for me to run certain programs before it actually installs, but it doesn't shut down copies of the program itself. So I have a next startup instance set to shut the program down if the -1 is received. But if the program is not running it starts up instead. This is not desired. form1.close doesn't work. e.cancel = true doesn't work, etc etc. What can I do to make the program not start during this instance.
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Mar 1, 2012
This is going to be a lot to ask, but I'd like to convert my old GW-BASIC program to a command line program with arguments. I'd like it to operate as follows:
elapse [drive:][path]filename This is my old code.
5 CLS
10 OPEN "G:Calc.txt" FOR INPUT AS #1
20 WHILE NOT EOF(1): INPUT #1, A$, B$
30 IF MID$(A$,3,1)=":" THEN C$="DOUBLE DIGIT":GOTO 50
40 IF MID$(A$,2,1)=":" THEN C$="SINGLE DIGIT":GOTO 120
[Code]...
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Mar 25, 2011
I'm a bioinformaticist, I'm trying to teach myself how to develop programs that are easy for everyday users to automate programs used in biological research. I thought VB would be great for helping people be more familiar with bioinformatics. Unfortunately, I'm brand new to VB and am stuck with my first program.
All I want to do is have a window pop up where the user then selects a file from an OpenFileDialog box, and pass the filename to a bioinformatics program names msconvert. What I've been doing keeps giving me a message that seems to says, "Unhandled exception has occurreed in your application. . . . File not found."
However, as you can see in my code (below) I have a MsgBox that shows that the correct file HAS been selected, and I can get the whole thing to run from command line.[code]....
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Oct 23, 2011
how can i make my own program must run with command line? if the program run without command line, it show some error msgbox..
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Jun 6, 2012
I have beginner skills using VB (am using the Express edition to learn). I would like to know how to set up a conditional statement in a Windows Form (WF) app that would check if a specific command line has been passed by another separate app that launchesthe Windows Form app using command lines, and if not passed, then the Windows Form app would shut down (exit, close).So far, I can use:
For Each s As String In My.Application.CommandLineArgs
If s <> "xyz" Then
Me.Close()
[code]....
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Oct 27, 2011
I am working with saving and deleting images. What i really want to do is check and see if an image exists in the destination folder and if it does automatically overwrite it. i couldnt figure that out so i figured i would look to see if the file was there if it is Delete it then write the new file..The issue is i keep getting this error.The process cannot access the file "FileName" because it is being used by another process. [code]
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Feb 22, 2007
i want to know how to get the command line arguements inside the vb program aka parameters that you specify while running a vb program through a shortcut by specifying a parameter ??for ex: "c:myfile.exe -parameter1 -parameter2 -etc".
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Sep 24, 2010
I want to make a command line program BUT I really want to have a call function. I have tried this:
[Code]....
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Dec 15, 2011
I want to launch System Restore through my program. I figured out the destination of this feature in Win7 is: WindowsSystem32control.exe sysdm.cpl @0,4
So I wrote this
Dim p As New System.Diagnostics.Process
Private Sub CreateASystemRestorePointToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
[Code]....
Problem is that it will not work if I have anything behind .exe And "sysdm.cpl @0,4" is vital for this to work, otherwise I just launch Control Panel, which is pretty useless for what I want to achieve.
So how do I include commands like those in Visual Basic?
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Sep 10, 2007
How can I return an errorlevel to the command line through VB.NET? I have tried:ExitProcess(0)and Environment.exit(0)
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Feb 5, 2010
How would I start a Command Line program with arguments?
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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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Oct 29, 2009
I would like to create a console program in VB.net that would allow parameters. What i would like to do is in the code below add parameters so the webpart page can be created from the Run menu. e.g. C:.......MyProgram.exe "Design" --This would then create the Design webpart page.
I tried looking at the internet but was not very successfull.
Module Main
Public Sub Main(ByVal args As String())
Dim prj As String
[Code].....
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Jan 8, 2010
I'm writing a program in vb.net. The program can be started from another program by passing some arguments or it can be lauched by clicking .exe. I'd like to show the user some options depending on where he is coming.Is the below approach correct? [code]
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Aug 6, 2011
I use a single instance in my application. What if I give command line arguments to the exe of my program, so I can be selective in what was given command line in my program, but still single instance?
Example:
test.exe /show
When the command /show, then my program will
Form2.Show
Form2.BringToFront
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Jan 25, 2010
I built an app in VB 2008 Express.I have published it by using the Publish tab of the project properties dialog. In other parts of the publish dialog, I have successfully associated a file extension (.xyz) with my app. To finally publish it, I click the Publish Now button, not the Publish Wizard.The app publishes fine, and after installing it by clicking on the resulting Setup.exe file, it runs fine. The app creates a .xyz file (essentially a text file). I then close the app. In Windows Explorer, I can see the .xyz file with my custom icon. When I double click on the .xyz file, my app starts up.So far so good.
Now I need to implement reading the contents of the .xyz file in my main form's load event.I thought it was going to be easy by following a snippet to read the command line, and with the knowledge that the filename clicked on is the first argument (item 0 of the argument collection).So I started testing like this:
Dim strMessage As String
strMessage = "Count: " & My.Application.CommandLineArgs.Count & vbCrLf
For Each argument As String In My.Application.CommandLineArgs[code]....
So, is the method I'm using to deploy considered Click Once? Note that I am not online-enabling anything, so I am hoping I don't need to get into the ActivationUri learning curve, which seems to be about URL's.How can I simply get the name of the associated file double clicked on into my VB.net app?
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Jun 21, 2010
I was wondering about something: is there a way to communicate with another program/process on the PC without using files? What would this look like? Is there a search term I can use to get more info? This is not a vb.net question per se, but a general software question.
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Apr 30, 2010
First let me say that I am not sure whether or not this should go in this section or the API section, and if it needs to be moved I apologize. My issue is fairly straight forward, but for some reason I cannot get it to work.
I am trying to send a command to a command line and then submit the command. I have been trying without success to get this to work in v2008 Express and v2010 Express, Here is the code I am trying to us:
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" ( _
ByVal lpClassName As String, _
ByVal lpWindowName As String _
[Code].....
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May 6, 2010
I am trying to learn how to read XML file and created a little program below to start testing what I have read but keep getting error "Data at the root level is invalid. Line 1, position 1"The line where the error is coming from is the line "xmldoc.LoadXml(strFile)".. any ideas?
Code:
Private Sub cmdReadXML_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
Handles cmdReadXML.Click
Dim clsk As New clsHx
[code]....
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