I have searched the www but so far cannot see how to do it. Perhaps via a try/catch statement?
How can I test if a process can be started in vb before actually starting it, e.g. when I use process.start("<name>.exe") ....
but before doing that I would like to make sure that it will be callable.. is this possible at all? maybe by using some kind of My.Computer .FileSystem .FileExists ("<name>.exe") statement?
I'm using VB.NET for a web-application that starts some process using CreateObject, like this:
Dim AVObject = CreateObject("avwin.application")
After all is done everything get closed down en stopped using the proper release functions, however, for some reason the process remains.
Is there some way in which I can get the process id of the started process, in order to explicitly kill it just before termination?
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]...
I want to know if there is a way to get each new process (what has been started) in a real-time manner (instantly). I tried until now something like:
1. Getting the number of opened/running processes
2. If the number is different from the previous check then the program is scanning each process (what is running) using a timer, each process has assigned its "pid" (using array) -- so if there is a new "pid" the process will be scanned -- else the process will be skipped. (scanning: getting its "object" path and creating a md5 signature etc.) This is working but is inefficient(very)...
How do you know if a process starts another process?And how to get the newly started process' id?
View 4 Replieswhenever i start my app and let it start a process, and the process dies or gets killed my app goes down too. but this only occurs when i'm debugging, not when i run the program
View 2 RepliesProcessWindowStyle.Maximized for an existing (already started process)
View 6 RepliesI run a program based on a timer in VB.NET, and it executes just fine when I don't try to retrieve the output. For some reason, though, I constantly get an error on the Dim myOutput line... Can anyone spot my error? output is a string.Error: StandardOut has not been redirected or the process hasn't started yet.
Dim fetch As New System.Diagnostics.ProcessStartInfo("C:/perlprog.pl")
fetch.WindowStyle = ProcessWindowStyle.Hidden
Dim executable As System.Diagnostics.Process
[code].....
first of all, I'm not 100% sure this is the right forum to post this, as there seems ot be tones and tones of forum branches here, so if I'm not in the right location, i'm creating an IDE for a proamming language and I need a way to monitor the physical memmory usage of a process tree. I'm not talking about the WorkngSet64 of a process, but the WorkingSet64 of the process and any child process started by it.
[Code]...
I tried a variation of the code at the end of this thread.>> [URL] which is the following code using; one Button one Panel
View 5 RepliesI'm trying to get a process (wmplayer) started with a maximised main window. I've tried:
Dim VidPROC As System.Diagnostics.Process
Dim startInfo As New ProcessStartInfo("wmplayer", "C:MyVideo.mpg")
startInfo.WindowStyle = ProcessWindowStyle.Maximized
VidPROC = Process.Start(startInfo)
but the process starts with a standard, small empty mplayer window, NOT maximised. (If I change .Maximised to .Hidden it starts hidden, but seems to ignore it when set to .Maximised).
I'm using excel via interop in application.Sometimes users kill application that created excel instance and that results in excel instance sitting in memory without any chance of disposing it.First I tried to tackle this using ROT(running object table) looks like not all instances of excel are registered there.Than I tried to somehow mark excel process after it is started via interop.[code]This works as long as excel is visible but in my case excel window is invisible.All I need is to somehow mark process that started via automation with the parent PID, so that later I can kill it if parent does not exist.
View 19 RepliesOur application needs to communicate with another program through a COM interface. The interface will not work if the other program is started with "Run as Administrator". Would like to detect if this other process is in this state and warn the user.
View 2 RepliesI have the following
HTML
Me.AcceptButton = ExecuteButton
MyProcess = New Process
With MyProcess.StartInfo
[Code]....
When the app is finished it displays an "OK" message box. How can I detect the message box and then how can I trigger an equivalent OK click in the app?
We have a WCF service hosted in IIS that currently calls a VB6 DLL to do part of its job. This works fine, but we can't deploy the service to a 64-bit target environment without configuring IIS to run it in a 32-bit worker process.I am currently investigating ways around that restriction. Porting the VB6 DLL to .NET is not possible for various reasons, so I created an ActiveX EXE wrapper around the DLL in VB6, so that the service can run in 64-bit and the VB6 parts in 32-bit.
When I tested the service I got this error:
Type: System.UnauthorizedAccessException
Message: Retrieving the COM class factory for component with CLSID {9AE7303B-D159-43F6-B1A5-52D297581820} failed due to the following error: 80070005.
After some Googling I found that this is due to either:
Calling an MS Office component
DCOM permissions not being configured
NTFS file permissions not allowing read/exec access to the IIS worker process identity (ASPNET in my environment)
Of these:
Definitely not applicable Also not applicable; I am not hosting the EXE in DCOM or COM+, just a simple COM out-of-process activation
This looks likely; however, I checked the permissions, and NTFS reports that the Users group (which ASPNET is a member of) does indeed have read/exec access to the file I tried calling the EXE from a unit test fixture, which is executed in my admin-level account rather than the IIS worker process account, and it worked fine, so the error is definitely something to do with permissions. I'm not sure what to do next.
UPDATE:The IIS virtual directory is configured for Anonymous+Windows access; the WCF service uses only Anonymous authentication, the Windows authentication is for the VS debugger. Task Manager reports that the aspnet_wp.exe process is definitely running in the ASPNET account.I explicitly granted Read and Execute access to the ASPNET and IUSR_<machine> accounts on all the COM exes and dlls involved. This made no difference.
I explicitly granted Local Launch and Local Activation access to the ASPNET and IUSR_<machine> accounts on the relevant interfaces in the DCOM configuration. This made no difference either.Keep trying to get this working somehow.Go the whole hog and host the EXE in COM+.Give up. Tell users that the WCF service must be configured to run in a 32-bit app pool on 64-bit Windows.
I don't understand the error, Argument not specified for parameter 'test' of 'Public Shared Function TestThis(test As String)'.
Partial Public Class Form1
Shared Sub ReceiveCallback(ByVal ar As IAsyncResult)
Form1.Invoke(TestThis, New Object(){"test"}) 'error
[code].....
I have written a windows service that is meant to launch a notepad when a specific action happens. The problem i have is that even though the service launches notepad, the actual notepad it self is NOT visible. I know that it has been launced because i can see the process in the task manager. By the way the process is listed as a SYSTEM process rather than a process under my user name (i believe that is because my process is a "LocalSystem" one).
View 4 Replies[code]...
and from VB6 project I reference to Test.dll but an error messege was appear A reference to Test.dll file could not be added (If I create VB NET project and reference to file Test.dll it OK )
Probably a dumb question, but can you write a unit test project in one language to test against another project in a different language?I'd like to translate one of our VB assemblies into C#, but want to build unit tests to verify the results. I've tried to set a unit test project up to do this, but I can't seem to access the VB code within a unit test... I can't figure out if I'm just missing/doing something stupid, or it really isn't allowed.
View 2 RepliesWaaaaay back in 2003 I took a course called "Programming with the Microsoft .NET Framework (Microsoft Visual Basic .NET)" Then I attempted for the next year to get approval to take more courses, failed, and eventually gave up. Now, I'm being asked to write applications using VS 2008. I have, of course, forgotten everything I learned 6+ years ago, plus I'm sure things have changed. Plus we still don't have money for me to take any courses. my question to you is: can you recommend a free website, or a book I might find in my local library, that will give me a kick start into writing VB windows applications (database driven) and/or ASP.NET applications (also very database driven). I'm proficient in VB 3, 5, and 6, along with ASP classic using VBScript.... I just have forgotten pretty much everything I once might have known about .NET.
View 6 Repliesim new to this forum and to VB.NET, however over the next year I think I won't be getting a placement so I want to get as much programming experience as possible. I would basically like to learn VB.NET. Does anyone know a good site to explain its concepts and a compiler for it, which is compatible with a MAC.
Im sorry if you think this is a waste of space for asking but I'd rather download something recommended by people who frequently use VB.NET.
btw any tutorials out there on how to create database with vb.net with mssql just to let me get started, i was hoping for a simple db to practice on like id,name. ive made db with php and mysql but vb.net is a bit far from php and mysql though the concept is the same..
View 5 Repliesanyone know of any sites that give information about how to setup and test with an SQL application? I'm having a lot of problems working with SQL.
View 4 RepliesWhat control(s) do I need to use and how do I use them? I am ,looking for tutorials and sample code too.
I'm working on a trivia game where the admin can remove and add questions to a database. [code]...
I have been developing with VB6 for about 7 years now, and I think it is time I move on to VB.Net to future proof my skills.Not only that. I am learning C++, but that is beside the focus of this post.Anyway, So I installed the VS 2008 Professional, I didn't install all the Windows Mobile SDK stuff, Just Visual Studio, MSDN, and the sql server...
I do a lot of work with HTTP requests from within my applications, like building GET and POST requests and returning strings that are parsed and what not...I was using the winHTTP COM object in vb6 for the longest time, and I loved it... It was structured nicely and when Dimmed "with events" opened up a nice way of implementing progressbars, calculating download speeds, etc etc...
1) What is the .NET alternative of the winHTTP COM Object...
2) How do you dim objects withevents globally across a form class?
In vb6 I would dim my winHTTP object at the top of the form with events, and then I could implement all my progress bar code in the winhttp events that are exposed....Also then in each subroutine you then have to set = new winhttp.winhttprequest to create the new object, blah blah blah...
I need to figure out a way to project pictures in Silverlight (<Matrix3D/>) based on some predetermined variables that I have available to me.I have a need for the following projections:
Isometric
Orthographic
Oblique
Perspective
So, I have a number of variables provided to me like X, Y and sometimes Z. For example, this -
Type: Orthographic
X: 70°
Y: 10°
Z: 20°
somehow turns this -> into this -> and
Type: Isometric
X: 314.7°
Y: 35.4°
Z: 299.8°
into this ->
I have other information, like the coordinates of where the picture appears on a canvas, it's width/height, etc. if that information is useful too.
Does anyone started to work with VB 2010?. I have to migrate an application from VB6 to a new language and I've decided that I will rewrite the application on VB 2010. Well, I am here in front of the new flash 2010 and I have no idea where start. ja!
View 8 RepliesI want to know if there is a way where i can view the code that my computer sending threw the cpu so i can learn it is there a program i need to so this
View 3 RepliesI have a small problem with my application. When the system starts up, the program starts with it, but runs hidden (registry key with paremeter). The program also has a GUI.I want it so that when the user clicks the desktop icon, it does not start a second instance of the executable, but instead reveals the currently running background process. Is that possible?i.e. when the application is started with the "-startup" paremeter, it loads a hidden form2, and closes form1. When the desktop icon is clicked, it loads form1, while form2 remains hidden.
View 4 RepliesI created a form which,through the input of a URL via a textbox, downloads a file from the internet. For example I write in the textbox [URL] and after I hit the download button the software starts downloading the file (the progress is shown via a progress bar). What about if I want to stop the download before the download is over? How can I do it? What should I write in the "Stop" button?
View 6 Replies