Register events such as void / vi

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• Cancellation of registration user stored in the shift register event generates the error 1 if Subvi runs intermittently

  Hello

  I'm trying to understand the behavior of the attached excerpt from a larger overall vi functional.

  In a State, I'm generating a user event and in a State later unsubscribe from the event and destroy it.

  Now, if I went through the VI together in one step (i.e., step through events? set to FALSE), the VI runs without generating an error. However, if I run the VI by intermittent and output after each execution of the loop, the vi generates error 1. Why is it so? Please notify. Thank you.

  Peter

  Why are you registration and deregistration of events user, but you have no event structure in your VI who use them?

  When you run events, probaby the event you registered disappears when your VI stops running.  If you were able to keep your VI in the foreground running, then the life of the event would persist.

  The event number still exists in the uninitialized shift register, but it does not say more once your high level VI stops and you get the error 1.

  If it was really a global functional VI, you would terminals connected to the connector table in your VI, you would call this as a Subvi as part of a main VI and life event would persist and you wouldn't mistake 1.

• How to check if a user event is registered before you destroy?

  I have a number of screws running asynchronously each registrant to manage a common user event. During the shutdown, each of these screws is unregistered for this event. Now I want to destroy the event.

  Or reference material on user events recommends I wait that all event handlers are registered before destroying the event, and I would like to do this way, even though the waiting may not be necessary in a situation of judgment (suggested in another thread of discussion).

  So my question is: how to check if a user event is canceled completely before I have destroy it?

  In other words: is there a way to see the event handlers registered how a given user event has? I am currently using this VI (see below) to track the number of registered event handlers:

  

  (let's call it with + 1 when you register a handler,-1 when the cancellation of registration). However, it feels like a hack, and I wonder if there isn't a more appropriate way to do so. Ideally, a sort of built-in? This looks like something that LabVIEW would need to keep track of...

  Thanks in advance,

  -Kevin

  Kevin,

  I looked through a documentation to verify whether or not a VI as it exists and unforunately library VI does not contain a means for the user to track the number of events. If we had a VI in the library with the functionality you're looking for it would probably work very similar to your under the hood.

  -Nick-

• Master/slave with events

  Hi, I'm developing an application in which the user actions will initiate certain events.  I've implemented the application as an event-driven state machine.  However, I realized that one of the events must launch a continuous process, i.e. reading from the buffer of a USB device.  It seems that the master/slave model apply.  Is it possible to implement the model master/slave with slave event triggered activity?  I have the feeling of these two designs are incompatible.

  Thank you

  -Jamie

  If I interpret your concern of a straight line, "I thought that a part of the particular event should run completely before any action of the user would trigger another event...» » :

  An event Structure maintains a queue of unmanaged manifestations.  When any event registered to a Structure of the event is triggered, LabVIEW places the event in this case queue Structure (you can have multiple records for the same event and LabVIEW will be provided with a copy of the event in each record... a bit more advanced, but it happens more often with user events, since normally you should not have more Structures for a single VI event).  When the Structure of the event is called, it will be the next event unmanaged dequeue and execute the corresponding diagram.  If there is no event in its queue, then he will wait.  If none of the events occur (are added to the queue) at the time where the period has elapsed, while the diagram of time-out is executed.

  Which means, the schema associated with a certain event needs to be completed before all other diagrams can possibly run; However, events such as buttons on the user interface, are still captured during execution of the first scheme.

  If your diagrams of Structure of the event have long-running code, then you can go out with that have be your only design.  For example, the operations find and initialize in your sound image as an attachment as things just happen once and back relatively quickly, so the button find out the slave device will probably expect you - a slave is discovered, and then initialized by pressing the key, after which your VI is ready to run several diagrams of the event.  However, if one of your States running really persistent operations, such as a schema "" run slave"where you have a collection of persistent data loop, then you will be in trouble since the schema will not end and your UI will probably become numb.

  What does not work is if persistent operations are ran asynchronously.  If your slave has something like a "Start ANT Slave.vi" that starts an asynchronous process slave for you then returns, similar to how I would expect the "Init ANT Slave.vi" to behave, then that would work.

  What RavensFan and crossrulz have mentioned are ways to achieve this in your design (rather than in the design of the class ANT slave).  Say that your ANT class slave doesn't have any internal asynchronous substance put in place that you can just start, and you will perform all operations running on your block diagram yourself.  In this case, you can create a new parallel to your course while loop.  A form any synchronization mechanism, such as a notifier, could be acquired and transmitted to two loops.  Run the loop of the slave could simply wait on the front warning system it does nothing.  Then in an event run in the upper loop for push button start, for example, you have to send a notifier, stating, "Okay loop slave, please start".  The slave will begin its operations and continue to execute, while your event in the first loop schema would end, and you would still have a user interface responsive.

  The design pattern of messages in queue manager is where you have a queue instead of the notifier used in the example above, and you can messages from queue you want the slave to receive (and apparently act accordingly).  Loop of the slave and then check the queue to see if his master has sent something - if so, it performs this action; If this isn't the case, then it executes any action that it deems appropriate.

• Management events JFXPanel drag a expensive impact on performance with event handlers

  We have a drag event handler, which is a bit expensive, takes something like 20 ms. However, the code must be run synchronously.

  Is no problem in a pure environment of JavaFX, less events drag are created when the CPU load is high.

  However, when they are incorporated in the Swing using JFXPanel, this adaptation doesn't kick in, many events drag is created and the application become slow.

  Is it possible to imitate what JavaFX in the JFXPanel scenario?

  The code below is a stand-alone example that shows what I'm describing.

  Some results I got:

  -eventHandlerSleep = 5 - noswing-128 events > drag

  -eventHandlerSleep = 30 - noswing - > 46 events drag

  -eventHandlerSleep = 5-> 136 events drag

  -eventHandlerSleep = 30-> 135 events drag

  {code} import java.util.Arrays;

  Javax.swing import. *;

  import com.sun.glass.ui.Robot;

  Import javafx.application.Application;

  Import javafx.application.Platform;

  Import javafx.embed.swing.JFXPanel;

  Import javafx.event.EventHandler;

  Import javafx.scene.Scene;

  Import javafx.scene.input.MouseEvent;

  Import javafx.scene.layout.BorderPane;

  Import javafx.stage.Stage;

  public class DragHandlingTester {}

  private static long EVENT_HANDLER_SLEEP = 30;

  Public Shared Sub main (String [] args) {}

  for (String arg: args) {}

  If (arg.startsWith("-eventHandlerSleep=")) {}

  EVENT_HANDLER_SLEEP = Long.parseLong (arg.split ("=") [1]);

  }

  }

  If (Arrays.asList (args).contains("-noswing")) {}

  Application.Launch (JavaFXDragHandlingTestApp.class, args);

  } else {}

  new SwingDragHandlingTestApp();

  }

  }

  public static class SwingDragHandlingTestApp {}

  {SwingDragHandlingTestApp()}

  JFrame frame = new JFrame();

  final JFXPanel fxMainPanel = new JFXPanel();

  Platform.runLater (new Runnable() {}

  @Override

  public void run() {}

  DragTestScene dragTestScene = new DragTestScene();

  fxMainPanel.setScene (dragTestScene.createScene ());

  }

  });

  frame.setDefaultCloseOperation (WindowConstants.DISPOSE_ON_CLOSE);

  frame.getContentPane () .add (fxMainPanel);

  frame.setSize (800, 600);

  frame.setVisible (true);

  }

  }

  NotInheritable public class JavaFXDragHandlingTestApp extends Application {}

  @Override

  {} public void start (point primaryStage)

  primaryStage.setWidth (800);

  primaryStage.setHeight (600);

  primaryStage.setX (0.0);

  primaryStage.setY (0.0);

  DragTestScene dragTestScene = new DragTestScene();

  primaryStage.setScene (dragTestScene.createScene ());

  primaryStage.show ();

  }

  }

  public static class DragTestScene {}

  private int Queens = 0;

  public createScene() {} Scene

  New Thread (new Runnable() {}

  @Override

  public void run() {}

  try {}

  After 1 second, drag the mouse through the window

  Thread.Sleep (1000);

  Robot robot = com.sun.glass.ui.Application.GetApplication () .createRobot ();

  robot.mouseMove (50, 50);

  robot.mousePress (1);

  for (int i = 20 & lt; 700; I = i + 5) {}

  robot.mouseMove (i, 50);

  Thread.Sleep (10);

  }

  robot.mouseRelease (1);

  } catch (Exception e) {}

  e.printStackTrace ();

  }

  }

  ({. start()});

  BorderPane borderPane = new BorderPane();

  borderPane.setOnMouseDragged (new EventHandler() {}

  @Override

  public void handle (MouseEvent mouseEvent) {}

  Drag Queens ++;

  try {}

  Thread.Sleep (EVENT_HANDLER_SLEEP);

  } catch (InterruptedException ignored) {}

  }

  System.out.println ("number of events slide:" + drag);

  }

  });

  new back stage (borderPane);

  }

  }

  }

  {code}

  Yes, it is a known problem or expected, even if I don't remember the JavaFX bugs filed on this issue. JFXPanel is known to have some different problems with the sending of the event, such as Swing and live JavaFX on two threads. Drag-and - drop are required to be synchronous, so we enter a nested event loop while sending events to the Swing DND to JavaFX. It is the source of performance issues that you observe.

• Date/time of events help

  I'm doing vpet like game on flash for the class, but I need to work with time and dates of events such as the power, sleep, etc.

  At least for now I need help, find ways to check the game like every 5 minutes to bring up an alarm on the pet who need food.

  Unfortunately, all I have is the following:

  Stop();

  const millisecondsPerMinute:int = 1000 * 60;

  const millisecondsPerHour:int = 1000 * 60 * 60;

  const millisecondsPerDay:int = 1000 * 60 * 60 24;

  var date1:Date = new Date();

  trace (date1);

  I get the actual date, but don't know exactly what to do to have it checked every 5 minutes approximately. Don't know if it's with 'if' or ' do / while '.

  do not use the class date, use the timer class.

  var feedTimer:Timer = new Timer(5*60*1000,0);

  feedTimer.addEventListener (TimerEvent.TIMER, feedF);

  feedTimer.start ();

  whenever vpet is powered, apply a reset() and start() to feedTimer:

  function beenfedF (): void {}

  feedTimer.reset ();

  feedTimer.start ();

  }

  function feedF(e:TimerEvent):void {}

  a diet has been missed

  }

• Event Manager combobox

  I created a ComboBox with SceneBuilder 1.0, which generated a FXML file. What I do not understand how to write code Java to handle the event from a person to select an item in the combobox control list.
  
  I looked at a few that a co-worker has written code to handle other types of events, such as clicking a button. In general, they had the form:
  
  @FXML
  Private Sub btnMyButtonClicked (ActionEvent event) {...}
  
  All of the suggestions.
  
  Try to not me so much flame. I've just started trying to learn JavaFX. JavaFX 2.0 is so new that the documentation and books are limited. I see a lot of recycling of the same examples initiated by Oracle.

  Add a changelistener to the property of the selected item from the combobox selection model.

  ComboBox box = new ComboBox(FXCollections.observableArrayList("apples", "oranges", "pears"));
  box.getSelectionModel().selectedItemProperty().addListener(new ChangeListener() {
    @Override public void changed(ObservableValue selected, String oldValue, String newValue) {
      System.out.println("Selected: " + newValue);
    }
  });
  

  Do work with FXML, use the annotation @FXML on the definition of the box instead of instantiate directly in the code - the changelistener code selection box is the same as in the example above, and a simple user interface, would probably end up placed in the initializer of your controller class.

  JavaFX 2.0 is so new that the documentation and books are limited.

  Yes, more concrete examples showing the use of FXML would probably be a good idea.

• Why "Attribution of actions to events" does not work?

  Dear Sir

  In my authorization plug-in, I put a method which I hope that it can be called by SSAS connecting event occurs.

  void FmsAuthAdaptor::notify (IFmsAuthEvent * Veap)

  {

  processStats (Veap);

  MyFmsNotifyEvent (Veap, m_pFmsAuthServerContext) .notify ();

  }

  void FmsAuthAdaptor::processStats (IFmsAuthEvent * Veap)
  {
  If (Veap-> getType() is IFmsAuthEvent::E_CONNECT)

  {

  Field of FmsVariant;
  If (Veap-> getField (IFmsAuthEvent::F_CLIENT_ID, field) is IFmsAuthEvent::S_SUCCESS)
  {
  m_pFmsAuthServerContext-> log ('before ssas method", IFmsServerContext::kInformation, false);

  I64 clientId = field.i64;
  IFmsNotifyAction * pAction = Veap-> addNotifyAction ("notified by adapter");
  pAction-> setClientId (field);
  const char [] = "my_test" mtd
  field.setString (reinterpret_cast < I8 * > (const_cast < char * > (mtd)));
  pAction-> setMethodName (field);

  create and insert a U16 '12345' as the first parameter
  field.setU16 (12345);
  pAction-> addParam (field);

  create and insert clientId as double as second parameter
  field.setDouble ((double) clientId);
  pAction-> addParam (field);

  m_pFmsAuthServerContext-> log ('after ssas method", IFmsServerContext::kInformation, false);

  }

  }

  }

  In my application directory, I create a script named main.asc. I have the following codes:

  application.onConnect = function (client)
  {
  application.acceptConnection (client);

  trace ("MJF:application.onConnect");
  
  client.my_test = function (userParam, clientId)
  {
  trace ("MJF: in my_test");
  }
  
  trace ("MJF: after my_test");
  }

  but I do not know why:

  When a client connected to, I can see the traces of "MJF:application.onConnect", and "MJF: after my_test", but I don't see "MJF: in my_test. seems my_test method is not called by SSAS. It does not assign actions to events? Why?

  is there anyone who can tell me why? Thanks in advance!

  Hello

  SS function is not called between the auth because adapter which is called as the E_CONNECT event. Before calling a function of SS, the connection must pass through, so try the appellant under other events such as E_PLAY. I tried this at my end and it worked for me.

• Simultaneous animations on the same event Enter_frame

  I created a class that extends a line on Enter_Frame event. I want to display on the stage, but I want to animate its position using Enter_Frame event.

  How to do the two animations at the same time?

  I have added this script to the timeline:

  gLine.addEventListener (Event.ENTER_FRAME, movegLine);

  function movegLine(E:Event):void {}

  If (gLine.x < = 800) {}

  gLine.x += 1;

  }

  }

  where gLine is the instance of the class lively.

  The result is that, AS anime position, then animates the extension of the line. But I want the two actions take place at the same time - something like the rotation of the wheels of a car at the same time, moving to the position of the car. Any suggestions?

  I think I have discovered my error. The scene must add the listener of events such as opposted to the line

• Event to be listened to to find the index of a tab in a tabnavigator

  Hello friends,

  I have a browser to tab and I would like to know the index of the tab that the user has clicked. Is there an event listener that to achieve this?

  Thank you.

  Hello

  YEST it is such event:

  private void changeHandler(event:IndexChangedEvent):void
  {
  trace (Event.NewIndex);

  }

  <>
  change = "changeHandler (Event)" / > "

  Kind regards

  Adrian

• EventListener never receive an event

  I have an application that consists of multiple mxml files.  In one file, I have a comboBox that has an event changes, as indicated below:

  < mx:ComboBox id = "comboBoxProperties".

  dataProvider = "{gXMLCollectionOfProperties}".
  labelField = 'text' labelFunction = "getLabelProperty."
  change = "selectProperty (event)."

  / >

  private void selectProperty (event: Event): void
  {
  dispatchEvent (new Event (eventPropertySelect.PROPERTY_SELECT, event.target.selectedLabel));
  trace ("you selected:"+ event.target.selectedLabel ");
  }

  In another mxml file, I have an event listener to intercept the event sent earlier.  For some reason any the function in my listener events never get the event passed to it.  Anyone can see what I'm missing here?

  < mx:VBox
  ' xmlns:mx = ' http://www.Adobe.com/2006/MXML "
  Width = "100%" height = "100%".
  creationComplete = "onComplete () '"

  >

  Mx.events import. *;
  import com.lms.portal.events.eventPropertySelect;
  

  public function onComplete (): void
  {
  this.addEventListener (eventPropertySelect.PROPERTY_SELECT, updateDataGrid);
  }

  Here is the code eventPropertySelect.as

  package com.lms.portal.events
  {
  import flash.events.Event;
  
  public class eventPropertySelect extends event
  {
  public static const PROPERTY_SELECT: String = "Proprieteselectionnez";

  public var propertyNumber: String = ";
  
  public void eventPropertySelect (type: String, propertyNumber: String = ", bubbles: Boolean = true, cancelable: Boolean = false)
  {
  Super (type, bubbles, cancelable);
  this.propertyNumber = propertyNumber;
  }
  
  }
  }

  You can add the event to the systemManager listener, if it is not recommended, it should work:

  systemManager.addEventListener (eventPropertySelect.PROPERTY_SELECT, updateDataGrid);

  When send you the event, are the second must be true, as in the definition of a default constructor for the class of events:

  public void event (type: String, bubbles: Boolean = false, cancelable: Boolean = false)

  So for you:

  dispatchEvent (new Event (eventPropertySelect.PROPERTY_SELECT, event.target.selectedLabel), true);

  If this post answers your question or assistance, please mark it as such.

  Greg Lafrance - Flex 2 and 3 certified ACE

  www.ChikaraDev.com

  Flex / development, training, AIR and Support Services

• FileReferenceList does not return a complete event

  Hello people of Forum!
  
  I have an application that downloads the files. A moment with FileReference file download works. No problems. But when I try to use FileReferenceList, objects in the FileReferenceList FileReference table do not return an Event.COMPLETE, when they finished. Both versions violate the same servlet, so I start from the principle that there should not be no problem on the receiving end. When I throw in debugging code, I see the return of open FileReferenceList object and progress events, but never a full event. Here is what my code does:
  
  The user clicks on the 'Browse' button and selects the files. When they're done, the button is clicked "Upload" and they clicked. I make a few calls to a database to retrieve identifiers of document and then I go through the download process:
  
  var fileReference:FileReference = FileReference (this.uploadFileArray.pop ());
  fileReference.addEventListener (Event.OPEN, traceEvent);
  fileReference.addEventListener (Event.COMPLETE, completeEvent);
  fileReference.addEventListener (IOErrorEvent.IO_ERROR, traceEvent);
  fileReference.addEventListener (ProgressEvent.PROGRESS, progressEvent);
  fileReference.addEventListener (SecurityErrorEvent.SECURITY_ERROR, traceEvent);
  var req:URLRequest = new URLRequest (endpoint + paramString);
  Req.Method = URLRequestMethod.POST;
  fileReference.upload (req, "whatever", false);
  progressBar.label = "Loading"... » ;
  btnCancelFile.enabled = true;
  
  Here is my 'complete' event handler:
  
  private void completeEvent(event:Event):void {}
  mx.controls.Alert.show ("completed event.");
  traceEvent (event);
  }
  
  
  I'm pretty much after the code of the language reference. The complete event is blocked or am I completely missed something obvious?
  
  I'll take suggestions or advice! Thanks in advance for the help!
  
  -Andy
  

  It seems that unless you keep a handle on the FileReference, flash will clean memory engine object it real quick. Which is what is happening here - even if the files were sent to the servlet without problem, the garbage collector has been sucking the FileReference objects until they could send the complete event.

  So the solution here was to place the FileReference object in a table just before download command and then remove it from the table when the end event is raised, so that garbage collection can collect timely.

  It was in fact in the documentation somewhere, but for some reason it didn't register only.

  Anyhoo... He is a good example of what to do about the specifications of lang in the FileReferenceList page under examples.
  http://livedocs.Macromedia.com/Flex/2/langref/index.html

  Hope this helps... someone. :-)
  -Andy

• Click event incorrectly attached after DOM manipulation

  I have a page with elements of entry and a span element style as a button. Register event handlers changes on input elements, to make the validation when the input values are changed. If the entries are not valid, I add the content of a div on the page to indicate the problem. I also save a click event handler on the span of style as a button.

  When I change an entry and then immediately click the duration (i.e. without leaving the input element before clicking on the duration of the update), I see:

  (1) mousedown on the duration
  2) switch to entry
  (3) mouseup on the entry

  This happens only when I change the DOM in the event handler changes on the entry. If I do not change the DOM then I see:

  (1) mousedown on the duration
  2) switch to entry
  (3) mouseup on the duration
  4) click on the duration

  In the first case, I see the mouseup attached to the input rather than the span element element, even if it has the same coordinates as the mousedown attached to the span element. Given the coordinates are within the span element and outside limits of the input element, I don't understand why mouseup is associated with the element of entry rather than the span element.

  There is an example of this at http://jsfiddle.net/4zx8rm7c/.

  I see this behavior in Chrome and Firefox 34.0.5 39.0.2171.95 m.

  If the association of the mouseup event with the input element, despite the apparently independent of the mouse event, behavior plan, coordinates I need to understand why that is. I looked at characteristics of COM event level-2 (briefly) and I don't see an obvious explanation.

  This forum is intended for the user support, not for issues related to web development.
  Try announcement Web development / standards evangelism MozillaZine forum. The contributors there are better informed on the problems of development of web page with Firefox.
  http://forums.mozillazine.org/viewforum.php?f=25
  You will need to register and log in to post in this forum.

• points before certain events in the calendar

  Just noticed that there are points in the face of certain events such as birthdays, while other events such as birthdays appear as they should - just the color of the birthday calendar. In addition, I have only a calendar in "on my Mac" and four calendars in "iCloud. Why is this?

  I answered my own question - the points were for specified times.

• Files missing after moving iMovie events from local disk to external HARD disk. Are they lost?

  Hi all

  Tonight, I tried to clear up little space on my local HARD drive and wanted to spend my events/projects of the iMovie local library to an external HARD disk, which I connected via firewire 800.

  I opened iMovie (v10.1 - current version with all updates installed). I clicked on an event to highlight and then the FILE--> COPY OF LIBRARY of selected EVENTS.

  There, I sailed on the external drive and created an iMovie new library called ReWatch2015. I copied successfully eight different events, including files from my external hard drive.

  The ultimate goal is to get rid of them on the HARD drive internal, I highlighted the 20 remaining events I wanted to move and then used the FILE--> MOVE of EVENTS at the LIBRARY and specified ReGen_2015.

  It seemed at first glance to move. In fact, he seemed to move too darn fast in my opinion. When I looked at home in the library of the external drive, they were nothing more than a string of question marks, with a message telling me that particular item is not found and re-import the original clips. It's impossible because I have not kept the original source material on my internal drive. I had asked before if they are preserved in the library of iMovie and told me Yes, so I that's why I deleted the original source material.

  Don't see no activity on the disks, I did the cmd - Z to go back. Events have now shown upward into the iMovie library internal. HOWEVER, they still have the question mark, with msg on reimport. What is scary, is that if I go to ALL projects of them have visible thumbnails. Yet, when I click on any of these thumbnails to load the project into the editor, I am back to the page of question mark again.

  Are the file on drive HARD internal, and they just disassociated projects, or two-thirds of my library of events of 2015 are now toast? I was not under any type of backup Time Machine to be able to recover them, and frankly, if they left, it is not the end of the world since I was of the .mp4 displayed on Vimeo. But, I would just assume the iMovie library intact if possible.

  Suggestions on how to recover are greatly appreciated!

  Robert

  Hi Robert

  Am having exactly the same problem on a new iMac 2016 running El Capitan: when I want to MOVE events such as you describe it, they sometimes get lost in the original library, both in the target library. Like you, I noticed that a such attempt to move just a very short time even if several GB of data play a role. Sometimes however, iMovie is able to move successfully. I my case, I had to re - import events so lost since an additional backup, I got on another external drive that I couldn't find the clips 'lost' on the HARD drive more. Very scary!

  I think it's an iMovie/El Capitan question which could be corrected with future updates. The only solution I've found is to the events of the FIRST COPY, and then check if the target is really OK and only then select the MOVE option, which will remove the original library to free up space. In addition, I plan to copy on a regular basis my library full iMovie on an extra disk to backup using the finder.

  Did you find anything in the meantime?

  Morgy