Find Threads In Application
Jun 7, 2011
I recently began working on an application that was built by someone that is no longer available. This application is filling an excel file, but I can not find ANY code that uses excel. There aren't even any references to excel interops. My thought is that this a multi-threaded application and I can't see what is going on behind the scenes. I tried watching the processes in the task manager, but found nothing.I've never worked with threads before, and do not even know where to begin. Debugging the program with breakpoints at multiple locations does not show me any of these other threads. Anyone have an idea on how to find/debug threads of a program?
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Apr 22, 2010
I know increasing the no . of threads causes risk and many other issues bu i wanted to know what is the maximum no. of threads that my vb application could open..... and is there any way by which i can determine how many threads are currently open in my vb.net application?
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Dec 9, 2009
I have two forms running in the same application but on different threads. HdForm and DataForm. I have a class library whit datasets and a stack in it. Cause both forms (different threads try to rad from the same class library i use a synclock to syncronize. But it seems like the synclock dont work.I get random errors in the HdForm while reading from myAr dataset. It says index out of range. But i know for sure that the index exist (i have make sure of that). When i click on the visual studio play button then, it goes again.If the index was realy out of range then it couldn't go further. So i think the synclock does not work and thus the dataset is changed in time while im the loop reading from MyAr.
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May 12, 2010
I need help to implement multiple threads in application.Assume ds.table(0) has 5 and sometime 6 rows rows for i=0 to ds.tables(0).rows.count-1.I have to apply multiple threads, means all five/six rows should start at once using thead and "Process 1" .."Process 4" should also handled by threads.This is hierarchy that I have to apply with threads, how can I do it. It is requested to put piece of code so I can understand better.
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Oct 19, 2011
I just had a new, last-minute idea on to take on a task, so I am running to StackExchange for quick help.
What I want to do is execute a series of methods right in a row, each in their own threads. I want the application to wait until all of these threads are completed, after which the program will resume. It also has to use managed threading (thread pool).
What quick examples could you provide to help me along the way? If it's too complex, what things should I know about so that I can Google it on my own?
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Dec 30, 2009
I have a main thread which is designed to be a batch processor - it spawns a series of 'child' threads from a loop (which can vary in terms of the no of items) - see below
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However, each of the 'child' threads could take anywhere from milliseconds to about a minute to process - depending on the complexity of each calculation. There may also be a large number of child threads - e.g 100s. Creating large numbers of child threads is not efficient. I therefore want some way to effectively queue each child thread (and cancel if the process is taking too long to complete). Autoevents seems like one way of doing this, but the only examples I can find seem to assume there are two different processes on seperate threads, not one process being repeated.
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May 2, 2009
I have one applicatin developed in my ap i have two main functionalities
1)Copyig Folders & Files from one source to destination
2) And I am showing status of copying in richtextbox and progrss with progress bar
Here i need to use threading bcz i am copying files from one server to another server and some large size files while copying my application always gone to stuck and i am not able to see status of copying and progressbar so how i use threading in my applicatio to put two functionalitis in two seperate threads.
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May 4, 2009
I am trying to stop the following piece of code from taking up too much processing power of the PC by using threads. But I keep getting errors when I use threads:
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Apr 15, 2009
I have an application, running multiple threads, and in many of these threads, Outlook is being called, some mails read, attachments downloaded, and then the outlook instance closed. But it is possible that there are a number of threads trying to do the same thing at the same time. There is of course a lock at the beginning and end of the process, so that no two threads try to access the outlook application at the same time.
"Sometimes" i get an error message : Creating an instance of the COM component with CLSID {0006F03A-0000-0000-C000-000000000046} from the IClassFactory failed due to the following error: 80010108
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Aug 26, 2009
I am trying to write a thread safe application that contains 3 threads : -
1 - Data acquisition and decoding
2- Data graphing
3 - FFT and filtering
Thread 1 is collecting bytes from the serial port and converting them int integers (so taking two bytes) after is has captured 64 Bytes and converted into 32 integers, it then needs to pass the array to the graphing thread.
The graphing thread then plots the data and waits for more data.
Thread 3 also waits until thread one has collected 2023 integers and takes these and performs some FFT calculations (which take time).
My question is how do i share the arrays between the three threads without deadlocking the program? as the serial thread will be flying around reasonable fast (1000 bytes per second) so it will synclock onto the shared buffers for most of the time.
Originally i was going to use two synchronised queues, so when thread 1 has collected 32 bytes it queues the data into the graph queue, and once it has collected 2023 it queues the data into the FFT queue.
Then thread 2 and 3 can simple dequeue the data.
However using queues has the overhead of casting the data in and out, and as i know the data type i was planning on using two arrays :-
Dim GraphArray() as ushort
Dim FFTArray() as ushort
Then Thread 1 adds data to each thread, and thread 2 and 3 simple wait until the correct amount of data is available before removing the data. my question is there an array type that allows me to remove x amount of data from an array?
Because i cannot do this easily with the ararys defined as above (GraphArray, FFTArray), as i was planning on making them 1mByte and allowing thread 1 to fill them Knowing they should never overflow and then let thread 2 and 3 remove x amout of bytes at a time unless there is a better way of doing it
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Apr 22, 2011
i have visual studio 2008 in with i'm doing an ASP.NET application.Now i want to link my pages to SQL Server 2008. On my page default.aspx, I put a gridview and then i can find the connection string from there to the sql server db, which i can then put in a class and have all pages use it.Is this the only way to find the connection string for any servers on the network or are there other ways (probably better ways of finding the conn string?)
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Dec 21, 2011
I use VB with Visual Studio 2010.I have use the example code from the Microsoft Homepage: [URL]Its work fine!Now I have an application on my computer, there I want to send keys via SendKeys to another application.In the sample code is listed:
Dim calculatorHandle As IntPtr = FindWindow("SciCalc", "Calculator")
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Feb 21, 2012
Is there a way that I can parse through the objects of an application and determine if each one is TypeOf a particular form object? I have found no clear way getting a reference to forms that have already been opened. Complicating this further, it appears that not all Visual Basic commands are available to me when coding for an old PocketPC device.
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Dec 1, 2010
VB.net 2008 build and publish.The application cannot publish as it cannot find the files. I down loaded the MS exe that installs it, but, I need to load them into the same folder as the install package.I looked at the folder: Microsoft SDKs/v6.0Aootstrapper/packages and transferred the folders but they do not contain the files.One of the errors on build is as follows <error> Error32The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35dotNetFX30NetFX30a_x86.msi' in item '.NET Framework 3.5' can not be located on disk. See Help for more information.WindowsApplication1.
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Dec 7, 2009
I have a vb.net program that initially finds the directory where application data can be stored with the following command.[code]....
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Apr 23, 2010
How I can find path for installed application from VB.net if i know the name of application exe file?
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Mar 1, 2012
I want to find the application thread and invoke something on it ... the problem is i have access to NO OBJECTS on the main thread so calling object.invoke is not an option. This is because I am making a plugin for something and have no access to the existing objects on the main thread .
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Jun 26, 2010
I'm trying to make a program that runs programs using image analysis. It will Recognize images on screen so that they can be clicked. Well when i was working on it i had an ideal. I could get the edges of the screen/window i'm using. Make a calculation to grid off areas of parts of the screen. Making the program not have to process the entire screen every time. So that it only has to call to process a grided off zone.
How every i dont know how to get the edges of the screen/window. Could some one link info on how to do it or give some code snippits. Thx for an info that you give.
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Jun 26, 2010
How can I find the location of my application's executable in WPF (C# or VB.Net)?
I've used this code with windows forms:
Application.ExecutablePath.ToString();
But with WPF I received this error from Visual Studio:
System.Window.Application does not contain a definition for ExecutablePath.
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Dec 3, 2010
I'm trying to find a good strategy to access data files, image files, etc., that I want to distribute in my VB.NET deployment. The challenge I'm having is to find a place to put the files, and a means for the program to find them, regardless of whether the program is running in the Visual Studio environment as a debug build or release build, or running as an installed application.I've considered using AppDomain.CurrentDomain.BaseDirectory to find the location of the EXE file, then using relative paths to that folder. However, that approach depends on the directory hierarchy imposed by the Visual Studio tools when it separates the binaries of debug and release builds. Both builds would have to navigate upward to reach a common root folder, and the path traversal algorithm must work for the deployed EXE file too.
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Nov 17, 2009
When I install my Application on a computer, and look in the program folder with explorer, I can not find the application folder,
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Mar 10, 2011
I have a VB 6 SP6 application that uses DirectX 7 to interface to a USB joystick (Logitech Extreme 3D Pro).The application works under Windows XP Pro (32-bit).I've got Visual Studio and the application running under Windows 7 Pro SP1 (32-bit).
I've calibrated the joystick under Windows 7.The VB 6 application does not find any DirectX 7 joystick device to connect to.Otherwise, the VB 6 application works (GUI, embedded video, serial channel, Ethernet connections).The VB 6 application must be accessing the dx7vb.dll or it would crash.The joystick disc did not provide a driver.I installed the latest joystick Profiler vendor software from the Web.This is my first attempt to use Windows 7 as a platform.I'm not sure what to try from a Windows 7 perspective.
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Dec 19, 2010
i want create an aplication for find bluetooth device in around give me a sample if it posible
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Oct 17, 2010
I've just moved an external dll into a folder different from the main exe directory, so I had to use the <probing> command in an app.config file. Now however, the application won't find the dll unless I have the app.config file in the same directory as the main exe! So how can I embed the app.config file in the EXE, or alternatively move it to the folder called 'Resources' where I store the external
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Apr 29, 2009
I want to be able to read the combo box and select it from my own app. How do I go about? Is this the correct procedure?
windowsformswindowappa = FindWindow("windowsforms10.window.8.app.0.378734a", "DTE Production - DTE Processing Facility")
windowsformswindowappa = FindWindowEx(windowsformswindowappa, 0&,
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Jun 22, 2010
how to find cpu usage information through net-snmp using .net application.
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Mar 16, 2011
I have started working on the module based application (plugin based architecture) and client want setup of module that can be run later and added automatically in main application. So, what I am thinking to apply in module setup project is to find the installation directory of main application and then paste dll of module in specific sub-directory.
Is it possible? Is there any other way to add feature in main application later using setup?
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Aug 3, 2009
i made a program that is associated with the .map file type. What I need to do is find out the path of the .map file that opened the application(including the file name for the .map file).
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Jul 27, 2009
How can I find the default email application for any given computer?
Once I have done that:
How can I start a process with the email application and specify an email address in the "To" field and a comment in the "Subject" field?
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Jan 29, 2012
i wont to creat application, in wich with file location find tables and use them in my app. as databases
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