LV OOP Multiple Instances of a class

Similar Questions

• What is the best way to run multiple instances of the class containing infinite while loop?

  Hello

  I have a several instances of the class (say a, b, c,...) that have the same parent and I want to run the same methods overridden to all instances in parallel.

  For example:

  a.init ()-> a.run ()-> a.stop ()-> a.run ()-> a.stop ()->

  b.init ()-> b.run ()-> b.stop ()->->->

  c.init() ->           ->             -> c.run() ->               -> c.stop()

  ...

  See the attachment for more details.

  The problems are now:

  1. the 'run' - method does not return until it receives the external trigger

  2. everything to run methods return in a different time

  1 chip means I can't use autoindexed for loop because in this case b.run () will have to wait before the end of a.run (), right? Is it possible to run to the loop in parallel?

  2 chip means that an object must be able to run and stop independently from others.

  What is the most elegant solution? The solution copy - paste in the attachment works for 3 instances, but there are currently 10 and more is coming.

  Juha

  In fact, what I wanted to know was "how to add the 'P' loop '... Easy, after you ask the right question.

  In the attachment, there is a test.vi that has two numerical indicators in a certain time-infinite loops. If I leave the parallelism, the two digital are incremented infinitely. If I don't allow parallelism, only the first is incremented (he never leaves the infinite while loop).

  To solve my original problem, I can make an init-start-stop branch within a loop-parallel-indexing for and make sure that there are the same number of instances of loop as there are objects in my array of objects (object array is an autoindexed in the loop for).

  Also good point about the vis environment. I should also add that.

• Why would I want to create multiple instances of a class or an apprenticeship program?

  We are working through a first trial of Captivate and have a little trouble understanding the system. If I create a course (which we did) why would we create instances of a class or an apprenticeship program? The help file does not explain why we want to do, it only tells us how.

  Hi Kodiak100.

  I can offer an answer regarding my own experience. For me the instances used mainly separate activity of the learner and activity courses; What about as well as the analytical organization.

  If you run reports on a single instance of a single course, you will need to filter this course reporting, using the fields available in the creation of custom reports. However, a separate instance of this course allows you to enter a selected population of learners. This may or may not be a filter available in the creation of custom reports.

  Perhaps the most useful part of a new instance is that you can use an existing course, which may have been some time to assign a for other users 'new' learning event and set the new expiry dates, reminders, etc.. For example, if you assign a class to a group of learners in March, and then the same course to a group in October, using a new instance avoids duplicating the same course, but allows a separate calendar, notifications and reports on the same, re proposed content.

  
  

  In addition, a separate instance allows you to set alerts, patches, and groups.

  

  It all depends on how your organization will use first.

• Re-defining a variable for multiple instances

  The code below is inside a loop to create multiple instances of a class that place markers on the scene. The event handler opens a panel of information when a marker is clicked the first time and closed when you click the second time. However, I want to set the value of fenetreouvrir to false for all markers every time a window is closed. My problem is that I don't know how to create a loop for this.

  You might be able to make the fenetreouvrir a marker property itself (encapsulation) and let the marker to manage internally what you describe. Setting fenetreouvrir to false for all the markers might be a marker class method.

• How to avoid creating multiple instances of the application?

  Hello

  We have a user interface Application. The application has been set to Auto run at startup and as a Module system.

  The application has a file listener that checks all new emails.

  When we start the application from the user interface by clicking on the application icon, it seems that the multiple instance of the application is created. For this reason when send us an email to request it is receiving emails several times. Sometimes simple, double and sometimes even five times.

  public class MyApplication  extends UiApplication implements FolderListener,
          SystemListener, GlobalEventListener {
  
      // Boot
      public static void main(String[] args) {
          if (args != null && args.length > 0 && args[0].equals("gui")) {
              // code to initialize the app
              fromService = false;
              // register the notification
              Notification n = new Notification();
              n.registerNotificationObjects();
  
              Utilities.writeLog(GUID, "MyApplication GUI Starting up");
              MyApplication service = new MyApplication();
              service.enterEventDispatcher();
          } else {
              Utilities.writeLog(GUID, "OnBoardV2 Service Starting up");
              MyApplication service = new MyApplication();
              service.enterEventDispatcher();
          }
      }
  
      public void messagesAdded(FolderEvent e) {
          /// Receive messages
          }   
  
  }
  

  In this regard, any help will be apreciated!

  Thank you

  I don't know if it's your entire code, but if you register your application as a file time listener never, it is called, then you save several headphones. The listener does not cause deleted your app closes, you must explicitly remove the listener. You must either put the listener in its own class and only sign up to start or find a way to check if the listener is already registered whenever the application is called.

• Multiple instances of the same symbol of edition

  Hi, was looking for a solution to this for a while, did not a straight answer yet. So I hope you guys can help.

  For a game of Hangman-esque I have a flash document (with CS5, but that probably doesn't matter) who has (or will have rather) a library of 26 clips that will contain a letter of the alphabet every.

  They will be inside their own dynamic text box, so I am able to change the font, background color etc at will.

  But it is even possible to edit multiple instances of a clip on the stage at the same time, without being too complex?

  In other words can I put several A, B, C etc. on the stage and get all change at the same time if someone guesses a letter?

  I know you can change instances unique of a clip, but for that you must give a name to each instance and I don't know how many of each letter I would be put on the stage, let alone how I could easily access.

  It could perhaps through classes or something? I've not really covered before if.

  Feel free to ask for more details... I admit that some I have things I write can be a little vague...

  Yes, a table that contains references to all the clips that are related functionally and when you manipulate them - loop in table and change all what you need to change on the table instances.

  I don't know what you want to learn more on...

• How can I hide/show toolbar again operate independently on multiple instances of firefox?

  I run two instances of firefox.exe. One for the left monitor and one for the right. There is a toolbar that I want to see on the right screen, but I don't want to see it on the left screen. This used never to be a problem, but it is now. It seems as if well now why show/hide toolbars are inextricably linked, and by changing or watching a toolbar on a single instance simultaneously causes the exact change even on the other open instance. I'm hoping that it could be a simple solution to this effect in the subject: config, however, I would rather not tamper with these settings until I'm sure that settings with the fix for this particular problem.

  Thank you for your attention and for taking the time to read this post.

  Sincerely;
  DC

  Toolbar settings are common to all windows open in this instance of Firefox.
  I don't know if there is an extension that allows to fix this dependent window, so you can check the website of modules.
  If you can't find one then you would use a second instance with its own profile.

  You can add - no.-distance to the command line to open another instance of Firefox with its own profile and run multiple instances of Firefox at the same time.

  • http://KB.mozillazine.org/Opening_a_new_instance_of_Firefox_with_another_profile
  • https://developer.Mozilla.org/Mozilla/Multiple_Firefox_Profiles
  • http://KB.mozillazine.org/Using_multiple_profiles_-_Firefox

• Question about multiple instances of Thunderbird running at the same time

  I read that when you start Thunderbird by clicking on its icon or the shortcut must only load once, even if you click on it several times. It should be just a window of TB. If I click on the shortcut/TB desktop icon, it behaves like that. I can click several times and that a single TB window will open and be active.

  However, if I run the 'quick launch' TB on my windows 8.1 (or no matter what windows) taskbar, I get mulitple TB windows to open, as much as I want. So if I click on TB icon in the quick launch once, I get a single instance of it. Twice, I get two, and etc. In the quick launch any program behaves like that. He starts programs with a single click and launch again and again.

  Only, I click it once and get an instance which is good and how it should be. But this behavior with the quick launch is ok? It must do this not with Thunderbird? Thank you.

  There is usually no advantage by running multiple instances of Thunderbird, unless specifically do you these race with different profiles. In practice, if they are allowed to use the same profile, the first Thunderbird should should acquire the profile and therefore block the others, although this may not become apparent until you try to salvage something, for example, a message, or to change certain settings.

  Your multiple Thunderbird work successfully? They all show the same mixture of accounts, folders and address books? Can all or part of them save and make changes?

  If this is the expected behavior, (i.e. some "typical" windows) I do not like; He does not play well with profile blocking and I think that lead to problems.

• Firefox does not work for multiple instances of the SAME user account on Windows Multipoint Server 2011

  We have a PC HP of MulitSeat MS6200
  It runs Microsoft Windows MultiPoint Server 2011 (which seems to be a twisted version of Windows 7)
  It is implemented in a laboratory of computer science and students connect you using their account for shared room - IE multiple instances of the same user accounts are currently running on the PC at the same time.
  The first student to run Firefox can work with it without a problem.
  However, when another student try to start firefox they get the following message:
  Firefox is already running but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.

  Cannot start Firefox using a profile that is already used by someone else.
  Each Firefox instance needs its own profile or you will get this error message.

  • http://KB.mozillazine.org/Using_multiple_profiles_-_Firefox
  • http://KB.mozillazine.org/Bypassing_the_Profile_Manager

  Use-no.-line switch remote control to open another instance of Firefox with its own profile and to different instances of Firefox running concurrently.

  • http://KB.mozillazine.org/Opening_a_new_instance_of_Firefox_with_another_profile

• running multiple instances of VBAI does not work

  Hello everyone,

  We are 4 common examples of VBAI at the same time. Recently, he had to copy it (because production is doubly).

  With our first system, we have no problems when you try to run multiple instances of VBAI. This time, however, it does not.

  Our system:

  • 4 cams: Allied Manta 201
  
  
  • camera is triggered (rising edge) separately, but almost simultaneously.
  
  
  • Four port NIC (with the right driver :-))
  
  
  • 4 ports and our on-noard port are bridged.
  
  
  • computer: intel I5 (4 cores)
  
  
  • License to run Vision Builder 2012.
  
  
  • Programmed with Vision Builder HAVE 2012.
  
  
  • Interface programmed in c# (receives images of the relevant info 4 programs and displays on the screen).

  Action taken:

  • Test with our program that opens 4 instances of VBAI. Result: 1 single instance opens.
  
  
  • Removed our bridge a connected our cams on a switch. Result: 1 single instance opens.
  
  
  • Open VBAI 4 VBAI-programs directly (but separately). Result: Each program opens and is fully working.
  
  
  • Open 2 programs at the same time (with VBAI). Result: Fist opens and is equipped with the work. At the opening of the second program, that we get error messages saying that it is not possible to connect with our camera.
  
  
  • The test above was created with:
  
  
  1. The cam connected to our network card 4 ports.
  
  
  2. The cam connected through a switch.
  
  
  • I have also written 4 simple programs (just enter a period followed by image)
  
  
  • With these programs, I tried the above test (VBAI 2 hours and run both programs at the same time). Same problem: 1programs starts, the error messages when opening a second program.

  I have the impression that it's a network problem, but what bothers me is that, when the bridge, I don't see a difference with our another computer that works on our original assemblyline. When you work on a referral that our parameters are the same as on a computer that does not have a network card 4 ports. The computer (and liked)) allows us to run multiple instances.

  Any thoughts?

  Any help would be greatly appreciated. I'm sure I'm missing something obvious here, but I don't really see.

  If you need more information about something, let me know.

  With sincere friendships.
  Tom Declercq

  
  

• Multiple Instances of the Application to access the same DAQ hardware

  I have a relatively simple application that reads from a device of data acquisition (OR-9205 connected to NI WLS-9163) wireless.  I would like to run multiple instances of the executable, but I get the error-201105 (resource reserved) as soon as the DAQmx task starts on the second instance.  Each instance tries to acquire different channels of the same DAQ hardware.  Is this a problem with the data acquisition device, or DAQmx in general?  Thank you.

  -Joe

  Hey Joe,

  Unfortunately, you can only one type of access channel with each program.  For example, you might HAVE a program access and another use AO, but you can't have two programs different AI the same access card.  It is common among all of the DAQ hardware to NEITHER.

• Multiple instances of VBAI

  I know that we can now acquire multiple cameras in VBAI (thanks!).  However, in my view, what to do so leads to very complex control sequences.  It doesn't look like VBAI has fully embraced parallelism for anything other than the FTP transfer.  What should I do if I have 5 cameras GigE each needs to be raised, and where it is possible that two can be triggered at the same time?  Can I run multiple instances of VBAI on a single PC (hey, it's multi-core)?  I predict that the current response is to use LabVIEW, but VBAI is especially LabVIEW... right?

  I want to retain only the simple, single camera, inspections on the PC.  Running multiple instances of VBAI would allow me to devote an instance for each camera without worrying about what's happening on TSF the other 4 (or more).

  No, I have not tried to do it again.  Currently, I am out of town and away from my vision laboratory.  I thought that if this is possible, it is worth mentioning to the public and if it is not, then, it is worth noting in R & D.  The system I'm imagining would be a future version of a system, we finished just where we had 4 NI Smart Cameras and a GigE camera.  The question is on what to do if all 5 GigE cameras.  Don't worry, we still love the SmartCams!

  On a sequence of validation.

  Dan press

  PrimeTest Automation

  Hey Dan,

  Good question! VBAI supports the acquisition of several cameras, even if they are triggered at the same time. We have a flag in the acquisition stage that allows to specify if you want to wait as the following picture or purchase immediately. Thus, in the case simple two cameras triggered at the same time, you will have an initial state who tried to acquire the camera 1 and if there was a timeout he loop back and try again using the wait for the flag of the next Image. When an image is acquired, you know that the other camera was triggered, so you transisition to another State who acquires the camera 2 with an immediate flag, since we know that the image is already there. You can use the image select to switch between the two images, so it is possible, but not necessarily the cleanest. Even if you had two VBAIs simultaneously, synchronizing is not trivial to make sure you weren't inspect imageN camera1 and imageN + 1 on camera2, but perhaps this would not be the cause of your system. In any case, we don't currently support multiple inspections VBAI operating simultaneously on a system, but it is certainly a feature that we know.

  Thanks for your series of validation,

  Brad

• get all the screws in memory on multiple instances of application LabVIEW

  I try to get references to all of the screws in memory on multiple instances of LabVIEW application. Specifically, I'm trying to get the VI Refs screw (and their subVIs in memory) in another Explorer of projects at design time. (The other screws do not work.) For example, if you are only interested in VIs in the current instance of App (read the Project Explorer), you can use the following code:

  

  However, if you have multiple projects open, how can you get the references VI to the screw in the other project? It seems to me that it would be an another App Ref, but I guess I don't know how to get this reference. I'm assuming that if I could get this reference, I could use it in the same way as above for the list of App.AllVIs.

  Any help/clues would be appreciated. Thank you.

  I just tried the code below.  It runs in a single project; I have also open a second project with more than 300 screws and it opens a reference to each one without any error.  Are you the application instance reference wiring open Reference VI?

  

• Update loop under Vi of hand / run multiple Instances

  Hey everybody,

  If I want to keep my code as modular as possible so that I can see any sub or VI.

  One of the SUB vi is permanently offices incase another output is detected. I don't want to make this mark on the main level because I don't want a huge loop in my main.vi and you won't worry about sending shift register valuse to my Subvi for him to function.

  Essentially, I have designed this subroutine Vi and am now trying to constantly be driven from a main.vi

  This hand is simply.

  Cluster of entry--> Sub VI

  Void VI retains a loop waiting for a change request action. Unfortuantely when I change the vale in main.vi the avlues in Subvi don't update. I guess that makes sense, in C, for example when you call Returns you need to wait until the end of the function call to update. Yet, as Labview is so strongly focused on taking SUB vi to do almost everything for you, I can't imagine labview is not able to update these values. I looked around and the answer seems to be global variables. I really don't want to use the because my application will become very big, but I'll use them if I need to.

  Unforunately, when I tried to use my global variable thing, it didn't work.

  1. global Var = Cluster

  2. it's in the Subvi both the main VI.

  3. when I run my code the global variable is not up-to-date on both front sides when I change one of them. I'm doing something wrong?

  A few comments.

  • You have not included the global variable
  • If you want to run multiple instances of the Subvi in parallel, it must be reentrant.
  • As the Subvi is interactive, it must be configured to display the front panel when it is called, otherwise there is no way to stop it ever.
  • All your time loops needed little expects. They have no need to turn as fast as the CPU allows, all other processes of hunger.
  • "Go to under control" is extremely complex and crawling with weird stuff like an ant farm.
  • • The shift register must be initialized to avoid surprises (but you probably don't have it all)
    • Your loop runs one time too many.
    • Avoid the stress points, such as the structure of the case.
    • You can replace this whole thing with for example a table of threshold, no need to loop. (see image below).

  

  Good luck!

• multiple instances of internet explore in my task manager

  Why are there multiple instances of internet explore in my task manager when I open only one page?

  Hello

  IE uses smaller instances of itself to support tabs and correction of errors and it is normal for IE8. In fact
  It uses far fewer resources as well as the opening of 2 or more instances to access several pages. If you
  Open several tabs, and then still more small instances of Internet Explorer will be opened to support these tabs and error correction.

  So basically, everything is normal.

  Multiple Instances of iexplore.exe run when using Internet Explorer 8
  http://www.Winhelponline.com/blog/multiple-instances-of-iexploreexe-run-when-using-Internet-Explorer-8/

  I hope this helps.

  Rob Brown - Microsoft MVP<- profile="" -="" windows="" expert="" -="" consumer="" :="" bicycle=""><- mark="" twain="" said="" it="">