Dynamic event listener

Similar Questions

• Cannot add event listener to instantiated Movie Clip

  Hi guys,.

  I have a clip that I'm loading dynamically in my scene when a key is pressed.  Then, I would like to add a mouse event listener to the Movie Clip object so it can trigger a function when clicked.  I get an error when you try to do this and cannot find a solution anywhere.

  Here is my code:

  newLayerBT.addEventListener (MouseEvent.CLICK, newLayerBT_CLICK);

  function newLayerBT_CLICK (MouseEvent): void {}

  layerCount = layerCount + 1;

  Make a new object in my class BlankLayerMC

  var newLayer:BlankLayerMC = new BlankLayerMC;

  addChild (newLayer);

  Position the new object

  newLayer.y = prevY + newLayer.height;

  Change the text inside the object in order to take account layerCount courses

  newLayer.layerName.text = 'Layer' + layerCount;

  newLayer.layerNum = layerCount;

  prevY = newLayer.y;

  My problem occurs with this line...

  newLayer.addEventListener (MouseEvent.CLICK, moveSelection);

  layerArray.push (newLayer);

  }

  function moveSelection(e:MouseEvent):void {}

  var t = e.target;

  layerSelectedGraphic.x = t.x;

  t.y = layerSelectedGraphic.y;

  }

  Any help would be greatly appreciated

  change:

  function newLayerBT_CLICK (MouseEvent): void {}

  TO:

  function newLayerBT_CLICK(e:MouseEvent):void {}

• Please help on the event listener (notified)

  I create a dynamic text field, I want that she warned that, when had sent value in the text field, then click on play another frame. I found a few tag like event listener and the text event. but troubles I know how used.
  
  any expert made me see all of the suggestion or advice?

  If you want to trigger an action when a variable changes its value in as2, you can use the watch() function.

• Events unregistering on a cluster without Unregistering for all dynamic events

  Hello everyone

  I've been playing with dynamic event record but I hit a problem.

  Normally if I want to stop triggering events on a single control I will be wire constant ref with the correct type in the registry for block of events. This means that I don't have to use the unregister for events block and then rebuild the entire events list to registry when I only want to stop the events on a control.

  However, if I try to bring together a group of the refs (which cannot necessarily be of the same type) in a cluster then I can no longer cancel the events on this cluster registration from the register of events work a group of control constants.

  An alternative would be to use an array instead of a cluster, but this has two disadvantages: it does not create a case of dynamic event for each Member of the array and all controls must be the same type or they are co-erced to a more generic control class.

  I've attached an example VI (labVIEW 2011 SP1)

  I think I finally get the problem now.

  You need feed two references in separately.  You can cluster the registry OUT for events, I know, but I don't think that what you want will work.  You know that you can enter the tables in a table instead of a cluster, right?

  Shane.

  PS to be clearer.

  Register to activate your button separately from the rest.  Save all your "to be marketed" references - individually, not clustered - in a second 'register to events' and then together the two outputs (with the Save refnums event) before passing into the structure of the event.  You might have what you want.  So big cluster AFTER signing up, not before.

• registration of dynamic events - FP not in memory?

  Hello

  I have the problem that I do not understand the event registration Dynamics trhw.

  In my application, I have multiple threads that are initialized when the application starts and I switch between them using secondary.

  In one of this module, I want to register some dynamic event to find whitch controll cluster has been pressed.

  Why do I get error 1001?

  I have a static reference for all modules in the main thread. I start modules, but I don't open their FP.

  

  Well, your image is confusing because you cannot run without wiring this reference.  But if you did that then the error comes from the fact that your VI does not have a front that is open when you sign up for it.  So that the control reference isn't really exists.  I mean there are but you cannot reference a control that has not been opened.

  I think that what you want to do is open the front panel, and then set it to hidden.  Then after that the front panel has been open and hidden, to join the control event.

• It is back to LV2012 that the terminals of dynamic events are displayed by default?

  Between writing the title of this question and the drafting of this body, I realized my 'mistake' - which is between a function and a bug:

  If you drop a handler Structure in a given range from space empty diagram, the structure fell with the Terminal of dynamic events hidden.

  -but...

  If you drop a Structure of event handler in a range of context by right-clicking a user event Ref or event recording Refnum, the structure fell with this shown Terminal!

  Neat!

  To be more precise: the Structure of the event appears twice in the palettes.  One of the subpalette of Structures did not have terminal visible dynamic event, made one in the case of subpalette (which you can get by clicking right strategically).

• How can I create an event listener for the change of variable shared or similar?

  Hello

  I have a 'big' 6 devices communicating measurement system via the TCP protocol. The system is designed to use REST (the representative State transfer) with JSON (JavaScript object notation).

  Now, I need to add labview program to this environment. I've implemented a solution to 'work' with the help of this forum. Thank you for this! Now, I need to do better (currently no timestamps, large delays, etc.).

  I currently have a web service deployed using http-get as input. My web service .vi is just passing the web entrance to shared variables that are then questioned in real measurement program. Reason is that when I put the measurement program directly to the web service, it does not (something about rights and dependencies). Measurement program includes one third of the owners (Instron) drivers. Also I would not direct access via the network to our mechanical testing device potentially dangerous.

  Now, I want to change the message from the web services .vi commensurate .vi. Currently I have a loop of 10ms to query for changes in the shared variable. Is there a better way to do this? I thought create a listener to the shared variable change events.

  In addition, if you have any ideas (preferably, working code example) how to make the interface between labview and TCP-JSON I would really appreciate it.

  BR,

  Juha

  Currently in LabVIEW, the only way to create an event listener or event NSV is to use the DSC toolkit.  Most of the time the DSC is a very expensive tool that simply encapsulates the functionality that is built into the motor of the PSP and OAS and which is accessible to anyone who can program in LabWindows/CVI.

  http://zone.NI.com/reference/en-XX/help/370051P-01/CVI/libref/cvicnvcreatesubscriber/

  If you want to collaborate, I would like to create a small library of LV that would create a base SV events using a vi LV reminder or possibly passing return user LV event which is how works the DSC toolkit.  I asked OR several times to explain how do this and they're very tight discreet about it.  I guess that they do not want to give users LV less reason to buy the DSC.

• Static vs dynamic events - dynamic events are empty

  During the implementation of my project, I used static events to manage the interface. The Structures of the event separated while loops in the same vi.

  I changed the architecture to make code modular and I use dynamic events. Dynamic events are captured in separate subVIs event Structures. I spend the references to the controls in the subVIs that have Structures of the event and I record the events of the references.

  Static events had no problem.

  With the dynamic events, I see that some events are not consumed. Instead, I see the event inspector window a few times an event is 'empty '. This means that the button should be pressed again.

  I am attaching two examples of projects that have exactly the same functionality.

  The testDemo2 uses dynamic events.

  The testDemo4 uses static events.

  How much detail I miss the dynamic architecture events leading to lose some events?

  This UI code is crizazy. It is difficult to really say what is happening, but you have a Unregister for events VI after the structure of your event to during each single loop and then re-register at the beginning of each loop. Empty all dynamic events currently in the queue and then re-registered again.

  You must only register events, only once and cancel the registration at the end of the application.

  What you do isn't really very modular. Even if you add a new event/control, you still he wire through the Subvi references and register, so you're not really save any time. There is nothing wrong with having a static event for your UI record. What you want probably is an architecture of messages in queue manager, where your static user interface events create messages that are sent to a loop of consumer to manage.

• Lack of dynamic event (declaring)

  In my application, I have one notifying registered as an event 'user '. There are three structures of the event, each in a while loop; in every structure of the event, the event Notifier is recorded as "dynamic event. In both structures, the delay is set to '-1' (infinite). In the third stcructure, the time is set to 5 ms; the case of timeout takes 500ms to complete (for example, by using 'Wait ms'). A structure of additional event triggers this event notifier.

  What is happening is that the two structures with infinite time-out catch this event (I think), but lack the structure with a short timeout and expiration time of long-running cases. If I do the waiting time is long and the case timeout run quickly, this structure has also intercepts the event. It seems that when executing the timeout case, the event is canceled.

  An example VI is attached.

  Is this a bug or I do something wrong?

  Thank you

  Sergey Liberman

  You're doing it wrong.  You create entries in separate events for each loop.  You're really lucky that the two loops are both able to see the event and run.  Once a loop handles an event, it get cleared out of the queue of the event.  The two structures meet at the same time, but once that one or the other ends, he is allowed out of the queue and the 3rd structure ever sees.

  This has come up before.  This recent thread discussed.

• Add more dynamic events registration refnum

  Hello

  I have a wire that passes Event Registration refnum to my structure of the event. This thread is from VI, that I don't want to touch. He spent recording for the cluster of user events.

  I would add more dynamic events to the refnum (but not to the cluster), so I would like to re-record with the addition of new events.

  When I'm passing this refnum to block 'Register for events', LabVIEW does not allow me to expand this block and add new events, which I think is understandable.

  How can I add more dynamic events to the refnum?

  Close, but no cigar.  When you add user events, you want to be sure that every event has a unique name, then name your constants defining the events differently (as shown here).

  

  Bob Schor

• CompactRIO with dynamic event

  in my program, I have a struct event so when I amplant my VI in one NOR compactRIO his does not work and when I search for the resolution I found that I should use a dynamic event.

  my questions are:-in one compact RIO can I use dynamic event or not?

  -If so, how do dynamic events work? I need simple example

  Thank you

  I think in this document they meant "user events" not "dynamic events. If you look at the same page with the help of a newer version of LabVIEW, you will see that it is more clear now.

  Start by reading the user Network Interface (also the help of LabVIEW). Determine what type of data, you will need to send between the RT system and the user interface. Look at the examples for the mechanisms of communication in this document.

• With the help of registration of dynamic events for a Subvi

  Greetings to the forum LV,

  I'm having a problem with the inclusion of dynamic events in a Subvi and hope someone here can help you! Attached, is the culmination of many attempts to try to understand the inclusion of dynamic events. Basically what I'm trying to do with the screw joint is 1.) have a button that controls output PWM, 2). a speed selection menu that can enter 1 button said.) with an array of pwm values predefined; and finally, 3) to have some sort of event program which "connects" controls in 1). (and 2.) (IE, if I move the button to an exact value shown in the table, the speed selection must match this event). So far, I can say with certainty that the "speed selection" event card will not work because "New value" & "Old value" refer now to the refnum and not the selection of speed control (I intend to solve this problem after I solved this problem of the Subvi). However, the map of event engine speed PWM should work (when matches button among the values in the table, the selected speed will also report the "speed selection" control), which allowed me to reach my conclusion that the Subvi is not working.

  My reference to dynamic Subvi Event Registration: http://digital.ni.com/public.nsf/allkb/A882E27D1D7A949386256E0D0066B91A

  You need to make a different State for 'Timeout' in the Subvi and also avoid passing the value of timeout as -1.

  Find the file code.

• How in fact blackberry event listener

  Hi, m havin a little doubt

  Cvent JDE listener how actually works?

  They keep listening in the background for the event

  OR

  When the event occurs, then the OS itself call all the event listener for this event?

  I think that he shud of same way java event listeners work:

  Follow the link

  http://www.JavaWorld.com/JavaWorld/javaqa/2000-08/01-QA-0804-events.html

• Launch Global event listener when auto start MyApp

  What I was trying to do:

  MyApp has an alternative entry point and the graphical user interface.

  access to choice, I wanto save a folderlistener that triggers a global event to trigger an email sending process.

  so far, I've only had the entire process running only if I join the global event listener in the GUI part, it means when myapp GUI stood then go global Stanley knitted.

  but I want Global event listener remains all the time, how can I do this?

  I did some research in this Ant but just couldn't understand it

  any responses appreciated.

  my code:

  ============================================

  SerializableAttribute public class MyApp extends UiApplication implements FieldChangeListener, GlobalEventListener
  {

  Public Shared Sub main (String [] args) throws AddressException, ClassNotFoundException
  {
  MyApp PAP;
  If (args! = null & args.length > 0) {}
  {If (args.length > 0 & {args [0].equals("Auto-MyApp")})}
            
  Entered another application by the entry point.
  Turn on folderlistener at startup.
  FolderListenerApp.waitForSingleton ();
             
  }
  else {}
  PAP = new MyApp();
  theApp.enterEventDispatcher ();
  }
       
  }

  private void AddGlobalEvent() {}
  addGlobalEventListener ((GlobalEventListener) this);
  }

  Public MyApp() throws AddressException, ClassNotFoundException
  {
         
  ........

  AddGlobalEvent();
         
         
  ........
         
     
  }

  ' Public Sub eventOccurred (guid long data0 int, int data1, the object object0,)
  Object1 object) {}
         
  Logger.logEventError ("in eventOccurred...");
  Is it the GlobalEvent we expect?
            
  If (guid is 0xa4c7e78a6c3fe109L)
  {
  Yes.

  FolderListenerAction f = new FolderListenerAction();
  New Thread (fa) m:System.NET.HttpListener.start ();
  }
         
  }

  }

  ==================================

  Check out this tutorial that I posted earlier, it shows an application that is divided into a background process (extends the Application and begins when the operating system starts) and a process of foregroud/AC (extends UiApplication).

  Both are implementing GlobalEventListener and use it to talk with them

  http://supportforums.BlackBerry.com/T5/Java-development/tutorial-communicate-between-apps-processes/...

  Scroll down to the post on that date "2010-06-19 23:22"to the GET, the corrected version of the code.

• event listener for when the Panel is open?

  is there an event listener for when a CEP Panel is open.

  I have a persistent Panel the onload works only when the Panel is opened for the first time. I want to keep persistent, but I want to know when the Panel is open again

  Maybe I've misunderstood something, because my English is bad. Unfortunately the listener for events at the opening of the Panel, I also have not found, I had to go through the back door.