Static VI reference

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• Static VI reference will result in failure

  Nice day

  my application is composed of an exe (labVIEW 2014) and a "self-made" (labVIEW 2014) library, the two using many other lvlibs.

  Failure (own error set when detected that MODBUS initialization has not been done) is due (according to me) to not executing a static reference of vi.

  The failure occurs in the exe file before loading the library.

  Exe and library use the same lvlib MODBUS.

  I built with the lvlib MODBUS library in the files OR program branch.

  I have 2 PC to build & test. (If both computers have the lv2014 OR installed Dev Environment).

  The failure does not occur when I build the exe with the MODBUS lvlib incorporated in its own project, not in the direction of the program files OR and 1 specific PC.

  On the other PC, I can't fix so that the exe file is well-formed (build succeeds; although having conflicts (not solvable...; correctly construction means that the executable runs composed this failure)).

  Same conflict (not studied all the) on the PC with properly build exe, even more conflict... (I managed to get 1 single conflict on him does not correctly build pc...; the properly build the pc, he sees green conflicts).

  When it's a lvlib, I can open with lv and discovers the vi formed after generation, with an exe file, I can't.

  Can someone put me on the right track to tackle this problem, so that I can understand why it is still unable to build what on this PC?

  It is not the as with Windows dll hell, but hell lvlib. (I solved it once that similar cases with SEO in good lvlibs and not vi under program files...?)

  WARNING: pretty complicated, not for beginners. I'm sorry. I will not be able to provide sources...

  THX.

  
  

• 1061 call to a method may be undefined for addEventListener a static type reference Class

  import flash.events.MouseEvent;

  import flash.net.URLRequest;

  import flash.net.navigateToURL;

  var getContactPage:URLRequest = new URLRequest ("http://www.mycontacturl.html" ")

  Contact.addEventListener (MouseEvent.CLICK, ContactClick);

  function ContactClick(event:MouseEvent): void {}

  navigateToURL (getContactPage);

  }

  Any help would be appreciated

  Thank you

  The message makes it sound like Contact is the name of a class, not an instance of an object name.  Make sure that you name the object with a class name.

• 1119: access of property may be undefined onMotionFinished a static type reference

  It sounds simple enough, but it does not work. Any ideas. Here is the code

  function dunnsriverclick(Event:MouseEvent):void

  {

  If (currentSection! = "dunnsriver") {}

  var movecontent_mc:Tween = new Tween (content_mc, "x", Elastic.easeOut, 377,8, 2300, 5, true);

  var moveslider_mc:Tween = new Tween (slider_mc, "x", Elastic.easeOut, 2, 2300, 5, true);

  moveslider_mc.onMotionFinished = function() {}

  var dunnsriverDetails:Tween = new Tween (dunnsriverDetails_mc, "x", Elastic.easeOut, - 1135.85, 2, 5, true);

  }

                                   }

  }

  Declare it outside the service, but you assign it to the breast...

  var movecontent_mc:Tween;

  function...

  movecontent_mc = new Tween (...

• Reference a static open VI

  Hello guys,.

  To open the screws dynamically, instead of Hardcoding the name VI in a constant string, I do as indicated below to keep addictive for my VI, so if someone ever delete the VI of the project, move, rename, it will create a wire broken somewhere so that we will be able to fix it more quickly.

  However, don't you think it's a little weird to have the reference to the VI already, but we need to open a new reference, is there a way to get rid of the node property to get the path of the VI? Is that the static VI reference must be closed after the opening of the other reference?

  Would it make sense to be able to right click the static reference and specify the option to open a call and forget the reference?

  Is there a best practice?

  See you soon,.

  

  Mike, I remember there was at least at one point some subtle differences on the use of name vs. way (I think that having need of the loop from the root), but I'm not sure about this. In any case, I don't think it makes a real difference.

  Regarding the point of origin, it is true that it would not be techincally a requirement (at least as long you don't need special options such as reentrancy). You can vote for this if you want that it changed - http://forums.ni.com/t5/LabVIEW-Idea-Exchange/Allow-Asynchronous-Call-By-Reference-with-Strict-Stati...

• Thread: Function conflict, reference static VI

  Hello community,

  Sorry if this has already been answered before, but I spent an hour looking. I try to learn a little more about using subVIs to clean up my code.

  I'm trying to connect a static VI reference of a Gaussian function I made to the non-linear curve Fit.vi, but I get a cut wire that says "feature conflict".

  

  When I create constants for the release of my Gaussian VI and the entrance to the Fit.vi curve nonlinear, they are clearly different classes.

  

  Could someone show me how to change my Gaussian VI to match the class correctly? I would be very happy.

  Thank you

  -Patrick

  Your Subvi model needs a connector model that is identical to the model. Start with the model mentioned in the help and change only the code, not existing controls and indicators. Simply leave it unplug unused terminals, do not delete.

• Static Singleton instance reference gets cleaned memory!

  OK, it's one of the strangest things I've ever seen.

  I am currently working on a project where I use a singleton like this:

  public class SingletonExample {  private static SingletonExample instance; private Vector listeners; private PhoneListener phoneListener;
  
    private SingletonExample(){       listeners = new Vector();     phoneListener = new PhoneListenerImpl();  }
  
    public static synchronized SingletonExample getInstance(){        if(instance == null){         instance = new SingletonExample();        }     return instance;  }
  
    public synchronized void addListener(SomeListener listener){      if(listener != null){         synchronized(listeners){              listeners.addElement(listener);               if(listeners.size() == 1){                    Phone.addPhoneListener(phoneListener);                }         }                 } }
  
    public synchronized void removeListener(SomeListener listener){       if(listener != null){         synchronized(listeners){              if(listeners.contains(listener)){                 listeners.removeElement(listener);                }                 if(listeners.isEmpty()){                  Phone.removePhoneListener(phoneListener);             }         }                 } }
  
    private void reportListeners(){       synchronized(listeners){          int sz = listeners.size();            for(int i = 0; i < sz; i++){               final SomeListener sl = (SomeListener) listeners.elementAt(i);                new Thread(){                 public void run(){                        sl.onListenerReported();                  }             }.start();            }     } }
  
    private class PhoneListenerImpl implements PhoneListener {        public void callAdded(int arg0) {}
  
        public void callAnswered(int arg0) {}
  
         public void callConferenceCallEstablished(int arg0) {}
  
        public void callConnected(int arg0) {     }
  
         public void callDirectConnectConnected(int arg0) {}
  
       public void callDirectConnectDisconnected(int arg0) {}
  
        public void callDisconnected(int arg0) {          reportListeners();            }
  
         public void callEndedByUser(int arg0) {           reportListeners();                }
  
         public void callFailed(int arg0, int arg1) {          reportListeners();                    }
  
         public void callHeld(int callId) {}
  
       public void callIncoming(int callId) {}
  
       public void callInitiated(int callid) {}
  
          public void callRemoved(int callId) {}
  
        public void callResumed(int callId) {}
  
        public void callWaiting(int callid) {}
  
        public void conferenceCallDisconnected(int callId) {} }}
  

  (Not the best singleton, but very safe and is the one I usually use).

  Want to-be-singleton class contains a collection of the listener (I have not included SomeListener interface, but it is very simple, only an onListenerReported of the method). Also contains an instance of PhoneListener. When a call is disconnected, the class of SingletonExample should report each listener on a new Thread.

  Now the collections on static variables is subject to leaks memory, but this class is intended to contain only one or two listeners at a time, so there is not much. And as we are about to see, the static integer variable 'instance' is going to be garbage collected between "consecutive" calls to getInstance.

  Now, I have a method like this, taken from a menu action:

  public void someMethodFiredFromMenu() {  new Thread(){     public void run(){
  
            SomeListener listener = new SomeListener(){               public void onListenerReported() {                    System.out.println(">>>>>>> Call disconnected!");
  
                    //FIXME: Singleton static member is null at this point,                   // so it is constructed again!!!                  SingletonExample.getInstance().removeListener(this);
  
                    //Do other things here                                    }                                     };
  
            //First call to getInstance, static member is constructed as expected         SingletonExample.getInstance().addListener(listener);     } }.start();}
  

  If test you it on a 4.7 Simulator I (BlackBerry 9530 Simulator, v4.7.0.75) you can see that the static variable singleton (named 'instance' within class SingletonExample) is collected between calls to someMethodFiredFromMenu.

  It never happened to me before. Somehow, that there are two threads involved, the JAVA virtual machine (if we can call it ) determines that the variable is more accessible and collects, thus screwing my design.

  Interesting things:

  Make two consecutive getInstance calls in the same thread works.

  Holding a last reference to the SingletonExample within the method of the menu and its use (even in different threads) also works.

  * Note: I've changed a few names from my original code, so there are compilation errors, but at least you know what the code meant.

  It is a feature of the BlackBerry JVM and what others have stumbled on before, including me.

  The best way to summarize the problem is that a static is only a Singleton when the static object references are in the same instance of the Application.

  Another way to say it is that each instance of the Application has its own set of static variables.

  The problem here is that you code earphone is running an application, which will have a set of difference of static variables for your Application.

  Here the best way to create a Singleton in a BlackBerry

  http://supportforums.BlackBerry.com/T5/Java-development/create-a-singleton-using-the-RuntimeStore/TA...

  That said, I would recommend that you avoid treatment on the earpiece - if you can only use global event to convey the information for your Application, then it can be handled in your Application and static object is a Singleton!

  A bit off-topic and just because I'm here, but what's the point of the Thread in this treatment?

  public void someMethodFiredFromMenu() {}
  New Thread() {}
  public void run() {}

  SomeListener listener = new SomeListener() {}
  public void onListenerReported() {}
  System.out.println ("> call disconnected!");

  FIXME: Singleton static member is NULL at this point,
  Thus, it is built again!
  SingletonExample.getInstance () .removeListener (this);
  Do other things here
  }
  };

  First call to getInstance static member is built as planned
  SingletonExample.getInstance () .addListener (listener);
  }
  }. start();
  }

• Unidentified for reference ActiveX object

  There are objects in the examples following that I can't identify (the program was written by someone else).

  There are labeled WINX32Lib.IExpSetup and pFile on the block diagram. There's obviously static ActiveX references, but the contextual help of Labview said "no description available".
  What do these, and how to create them in the palette of functions?

  calvintiger wrote:

  They were in fact part of the Winview (used for scientific CCD cameras).

  Do you know how to create these items on the block diagram?

  

  I admitted little knowledge or not and you think I can help it Fund?

  I'll take the complement and offer what I can in Exchange.

  Start by droping a container ActiveX on the FP.

  Right click and find an option to navigate (or something like that).

  There may be an option to "Create from the document" available for ActiveX stuff.

  In the case of navigation find something that looks like what you want (with the help files you will have to explore).

  After choosing the AX thingy, go to the BD and start adding nodes of property or invoke nodes and see what you find.

  I don't know if this will help. That's what I would do if I found myself trying to create code using undocumented stuff AX.

  It would be interesting to link to serach for help on the web for the AX.

  You COULD also just drag the code that you have demonstrated a new schema and there is.

  Made with the specualtion!

  Have fun!

  Ben

• From numerous references to sub - VI you use clusters returns an incorrect reference to the nodes property

  Hello

  I'm moving in the data from the controls on the main gui (also information using indicators) in my Subvi. For the life of me I can't figure out what the problem, I tried dang near everything so any help is very appreciated. Also, I suspect that my cluster may contain too much information. Finally, yes I know there are a lot of posts about it, but none seem to alieviate my problem.

  (Just a warning, if you try and you run the code, you will first need to change where the data file is stored, it only takes all the sensors and calculations information and stores it in a file)

  I couldn't reach all the Subvi, so I joined him relavent those. The main problem is the LangmuirTroughStepperMotorCodePlusSubVi in DataGatheringSubVi

  # You can not use 'create a control '.  I have no idea which wire or terminal you think that using on.

  You must:

  Remove one of the constant pink cluster.

  Move the static checking references and functions of Bundle for out of the loop.

  In each group, take the wire coming from the output of the beam, he wire through the wall of the loop like a tunnel.  Connect it to the appropriate entry of the Subvi.

  I recommend you watch the LabVIEW tutorials online
  LabVIEW Introduction course - 3 hours
  LabVIEW Introduction course - 6 hours

• Are there different types of references to screw? This example needs to be so complicated?

  "Forced Nonlinear Curve Fit.vi" requires some other VI implements the shape of the model must be adapted and requires a reference to this VI as one of its inputs.

  It seems that there are several kinds of references to screw - why? What are they and how do I know which one to use?

  I have attached a vi that the curve fitting with the vi mentioned above, and it also sets up the reference for the other vi that contains the model, also attached. By the comments, I thought that some simple reference pointing to the model VI would be all he needs, but he seems to need a dynamic reference that has been altered by cast to another type of reference vi. At least, if I understand this right.

  Can anyone shine light on it or hit me somewhere useful? Note that I already saw a context-sensitive help to create references to the screws.
  That's where I got my instructions.

  cebailey,

  If you right-click your static VI reference and select strictly "Typ VI reference", then you can connect in the constraint Nonlinear Curve Fit VI.  The VI curve adjustment uses a call by the reference node, which does not accept that strictly type (specific to a given link pane) references.

  Here are some help of LabVIEW on static references to VI:

  http://zone.NI.com/reference/en-XX/help/371361E-01/Glang/static_vi_ref/

  Chris M

• How to wire a model of factory reference in properly extended Kalman filter?

  Hi guys,.

  I have a problem using the Kalman filter lying on LV2009.

  Whenever I run my program, my State is not updated by the function.

  When I checked through, it seems that my model of plant somehow was not fully connected in the EKF vi.

  Never change the value shown on the factory model.

  The related vi (s) is attached. The acc_emg.vi is the main program.

  It uses EKF to estimate the State of the parameter of earthquakes.

  We hope you can give me some advice. Thank you very much.

  Agus Frédéric

  Nanyang Technological University Singapore

  You can right-click on the static VI reference and select strictly Type

  

• Problem with creation of table of references notifier by using a loop

  Hi all

  I am attaching two try_ChannelsOn2ndMonitor.vi screws out of the random values to four graphics and ChannelGraphsOnSecondMonitor2.vi receives these values through an array of references Notifier and refers to four corresponding graphics. Essentially, the graphics in the two screws are supposed to - and do - displays the same values.

  As a first step, using a loop to create the table of references of the notifier, I was unable to get the four graphs in the sub - VI to produce the desired values. They showed only the values in Figure 4 in the main VI. I tried to use the indexing, and then I tried using Shift Registers associated with the function of 'Building the table', but none of these methods worked. Finally, the only method that worked was that you see in try_ChannelsOn2ndMonitor.vi, which was to create four reporters simultaneously and combine them using 'building the table '. My question is: why is it not possible to create the array of references notifier by using a loop and always get the correct functionality? I spent a few hours I wondered about this.

  All of the comments related to my use of the notifiers, notifying bays or the reference of VI in the Structure of sequence are also appreciated. The structure of sequence is only there because the sub VI must be taken out of a second monitor; I essentially disabled it by setting the FP. State to 'Standard '.

  Thank you!

  Nemanja

  The table is still the order of the references notifier - so that you know the correct order.

  When you say "it will continue execution as soon as one of the notifications is received", do you know if it means he will send this notification for each registrant, or just for the appropriate warning system?

  I'm waiting on multiple notification - if you expected to return (and continue to run) once it receives all notifications I don't think it's what he does based on my understanding of the documentation.

  OK, now that I have had a good look, I probably slightly different framing the code - I propose the Subvi out of the while loop and then put a while loop around the code in the Sub - VI. Something like this:

  

  That's what I wanted to say to have individual loops for the Subvi - terminal error is connected to the judgment for loops (and thus the VI) stop running when you release the notifier. That should remove the need for static VI reference as the VI remains before the end of your first level VI - then you can move your code of positioning inside the Subvi.

  Using the sequence of structures here as you have done to make sure that the code block happens before your start of loop is very good, another common method is to wire the error out in (or at) the border of the loop - in a more complicated application, you would maybe put this code in a State 'init' of a state machine.

• Get a reference of Subvi w/o using Open VI reference

  Is there a way to create a reference of VI without specifying the path to the file/folder to the open VI VI Refrence?  I would have thought I could right-click on a Subvi in a diagram and Create goto-> similar to the controls and indicators reference.

  My only problem with the specification of the location is the name of the VI must be hard coded in the path.  If ever I change the name of this VI special I'll have to remember to update my string constant.

  You can use a static VI reference. I didn't check, but because it's treated as a Subvi should update the reference if you're doing a "save under...". "of the LabVIEW Subvi.

• What is the correct syntax to reference a page point (P23_ID, for example) in a process of PL/SQL page after submit?

  What is the correct syntax to reference a page point (P23_ID, for example) in a process of PL/SQL page after submit?

  TexasApexDeveloper wrote:

  Variable binding is preferred: P23_ID you can also use & P23_ID. (variable substitution notation).

  Bind variable and static text substitution references are not interchangeable. For example, static text substitution references cannot be used in allocation targets:

  :P23_ID  := 'foo';  -- valid
  &P23_ID. := 'bar'; -- syntax error (or something weird or sinister due to SQL injection)
  

  Substituting static text references should be avoided in SQL and PL/SQL code because of the risk of behavior topic SQL injection and / odd error because of values containing quotes, etc.

• script of the child cannot reference the parent script

  Hello

  
  I define a variable (var photo1Show:Boolean = false ;) in the actionscript layer. I have a movie

  component of clip on the scene at this level. I double click on it to open it. This clip has a

  ActionScript layer were I put code "parent.photo1Show = true;". When I test the

  application, I get error:

  
  1119: access of property may be undefined photo1Show a static type reference

  Flash.Display:DisplayObjectContainer.

  
  What's wrong? Also, I'm using Flash CS4.

  
  King

  
  Code snippet
  -----------------------------------------------------------------------
  Parent frame: contains several layers. the two in question are the layer photo and action.

  layer action:

  PREV and next controls navigation botton

  var photo1Show:Boolean = false;
  var photo2Show:Boolean = false;
  var photo3Show:Boolean = false;
  var photo4Show:Boolean = false;
  var photo5Show:Boolean = false;

  Set your captions here
  var caption1 = 'model 1 Poise. "
  var caption2 = '2 model Poise. "
  var caption3 = '3 model Poise. "
  var caption4 = 'Poise of model 4 ';
  var caption5 = "model 5 poise."

  Define the name of the external folder of your photos in large and inches are in

  var galleryFolder:String = 'Nepalese ';

  Thumbs configuration, create instances of charger for every inch

  var pic1ldr:Loader = new Loader();

  ... The rest of the code in this layer is not important

  ------------------------------------------------------------------------------------------ --------

  photo layer:

  Contains the movie clip frame_mc on her diaper.

  I double click thre movie clip object. It contains several layers action, photo1 by photo5

  layers. PHOTO1 photo5 tape contains images, which, unlike keyframes.

  -------------------------------------------------------------

  layer action:

  Stop();
  parent.photo1Show = true;
  parent.photo2Show = false;
  parent.photo3Show = false;
  parent.photo4Show = false;
  parent.photo5Show = false;

  You must cast to the parent as a movieclip:

  MovieClip (parent) .photo1Show = true;