Calling function in QML?

Similar Questions

• Stuck to calling function c ++ QML

  Hello

  I am a newbie in QML. While playing with examples, I tried calling function c ++ QML.

  hand. QML is-

  import bb.cascades 1.0
  
  Page {
      Container {
          layout: StackLayout {
          }
          Label {
              text:  _foo.sayHello();
          }
      }
  }
  

  c ++ is

  //say Hello
  QString foo::sayHello()
  {
      QString hello = "Hello!";
      return hello;
  }
  

  But my program does not say hello. What's wrong?

  Could you show the function declaration and the way in which the class is exported to QML?
  The function must be declared as Q_INVOKABLE.

  Check the logs of apparatus for run time errors may also give a clue.

• Call functions of qml in main.qml of a part of the user interface of the part without application head.

  Hi all;

  I wanted that my application runs in the background (Headless) but first encountered several problems, calculation are qml functions (in main.qml: updateUi() with call javascript *.js files), who should I call their headless part when the part of the user interface is closed by the user? Please help me if you have any solution.

  Thank you very much.

  identify what treatment you need for the game without head and migrate to c + c++ / Qt.

• Activation of calling function WhatsApp

  So I was wondering if anyone of you guys have the calling function enabled on whatsapp and if could you please call me to activate it? Then PM me and I will reply with my number, I'm not posting here cos I don't want the world to see that it

  So I finally managed to get calls on WhatsApp! I had to uninstall the version of WhatsApp page and install one of the playstore. If you do that and you receive a call (or if you have received a call) the feature must be activated

• Unexpected behavior first LV call function called VI.

  Hello

  I call a VI that has the first call internal ventricular function. It works as expected when I run the sequence of the first time. However, when I run the sequence for the second time, First Call function returns 'false', when I run this VI for the first time. Expected value is 'true '.

  Why?

  I use the default options for loading and unloading. I played with the options of unloading in the property Options running, but futile.

  What should I do to make it work because I expect?

  
  

• How to return on a Subvi in a calling VI and does not stop the calling function

  I am writing a program which consists of a call VI and one under VI. I want to call function to run continuously and be able to trigger the sub VI (via activation of the voice). I want the sub VI to expire automatically after 10 seconds and return to the calling VI (master), which will continue until the sub VI is still called.

  I found a way to expire the sub VI using the 'stop' command, but he left the appellant VI also, which does not. I know there is no 'back' or 'soft stop' in LabVIEW, but someone he knows a way to do this?

  What you really need in your Subvi is something like what is shown below. You specify the delay using the delay function or get Date/Time In Seconds msec. would work in the same way.

  

• Sims House Party, the installation program starts, then immediately closes, gives me the error "0 x 80040707 - call function DLL crashed: SORTS." PathGetSpecialFolder.

  original title: error number: 0 x 80040707
  When I try to install the Sims House Party, the installer launches and then immediately closes, gives me the error "0 x 80040707 - call function DLL crashed: SORTS." PathGetSpecialFolder.

  According to the compatility of Windows 7, the House Party is compatible under 64-bit and 32-bit Windows 7. I tried to install it on another computer running Windows 7 32 bit and the error does not occur.

  I am running Windows 7 Professional 64 bit.

  Looks like that method 1 solved my problem.  Normally, I would get this message several times a day.  For more than 3 hours I applied the method 1, and the error has not appeared again.  Thank you very much.

• calling functions from c ++ JavaScript

  It seems to me that only the functions Q_SLOT can be called from an external javascript file. For example

  ButtonID.Clicked () works, while buttonid.isEnabled () does not work. How to call functions like this from javascript?

  Hello
  "Buttonid.enabled" work? (enabled is a property)

  It should also be possible to call the functions marked Q_INVOKABLE.

• I have to do, if this error message appears: "JavaScript exception: error calling function selector: [object Error]? It seems that by Internet Explorer. Thank you very much for your reply and I hope you can help me.

  I have to do, if this error message appears: "JavaScript exception: error calling function selector: [object Error]? It seems that by Internet Explorer. Thank you very much for your reply and I hope you can help me.

  Hi Brad,

  Here is the link: http://projektw.primo-werbung.de/

  We have this problem only by Internet Explorer. Mozilla, Safari and Opera - there is all right.

• Call function scene MC

  Question: How can I call function of MC in the first image of the stadium?

  
  

  Example:

  First MC: ToggleButton have the function:

  function setSelected (b)

  {

  selected = b;

  If (selected)

  _this.gotoAndStop ("DN");

  on the other

  _this.gotoAndStop ("up");

  }

  This code working fine inside MC...

  This place of button on the stage with the instance name: btn_mc

  When I write Action in the first image of the stage: this.btn_mc.setSelected (true) in the output window of the browser, I got an error message: setSelected is not a function.

  You must declare the function to make it accessible. Try this inside the movieclip:

  setSelected var = setSelected;

  function setSelected (b)

  {

  selected = b;

  If (selected)

  _this.gotoAndStop ("DN");

  on the other

  _this.gotoAndStop ("up");

  }

  Then, it should work out the movieclip:

  This. ToggleButton.setSelected (true);

• MuseSJAssert: error calling function selector: TypeError: object does not support this property or method

  I get this error message with IE, version 8 upwards. The message appears once you navigate to another page on the site and then return to the home page. Can anyone offer advice on how to solve it? As the cursor on the site doesn't seem to work with IE, we wonder if that's where the whole issue.

  The site is hosted in British Colombia and is http://www.improvementservice.org.UK

  Thanks in advance.

  Martin.

  Hi Martin,

  Could you please try some steps here.

  MuseJSAssert: Error calling function of selection: [Object Error]

• MuseJSAssert: Error calling function selector: TypeError: $(...). toBrowserWidth is not a function

  HELP PLEASE:

  Error appearing on a website downloaded (as you view on the internet browser) as follows:

  MuseJSAssert: Error calling function selector: TypeError: $(...). toBrowserWidth is not a function

  Am new to Muse and if you can tell me what I did wrong, I would be very happy!

  Hello

  Please visit the following link http://forums.adobe.com/message/6163220#6163220

  Kind regards

  Aish

• How to call functions of class Document class side

  Main is my doccument class. How can I call the Main.showAlert class of the caller function.

  
  package
  {
  import flash.display.Sprite;
  import flash.events.Event;

  SerializableAttribute public class Main extends Sprite
  {

  public void Main (): void
  {
  If init() (stage);
  of another addEventListener (Event.ADDED_TO_STAGE, init);
  }

  private void init(e:Event_=_null):void
  {
  removeEventListener (Event.ADDED_TO_STAGE, init);
  entry point
  }
  
  public void showAlert() {}
  
  trace ("called")
  }

  }

  }

  ////

  package
  {

  public class calling
  {
  
  public void Caller()
  {
  Main.showAlert)
  }
  
  }

  }

  
  ////

  change your instantiation of the appellant if you switch a display object.

  package
  {
  import flash.display.Sprite;
  import flash.events.Event;

  SerializableAttribute public class Main extends Sprite
  {

  public void Main (): void
  {
  If init() (stage);
  of another addEventListener (Event.ADDED_TO_STAGE, init);
  }

  private void init(e:Event_=_null):void
  {
  removeEventListener (Event.ADDED_TO_STAGE, init);
  entry point
  }
   
  public void showAlert() {}
    
  trace ("called")
  }

  }

  }

  ////

  package
  {

  import flash.display.MovieClip;

  public class calling
  {

  var mainTL:MovieClip;
  public void Caller(mc:MovieClip)
  {

  mainTL = MovieClip (mc.root);

  mainTL.showAlert)
  }
   
  }

  }

  ////

  p.s. Please check the useful/correct.

• Calling functions PHP FB

  I have a project where I need to call specific PHP functions, but I'm having some trouble.

  I can call and execute PHP script, but not an individual function.

  How to call functions that exist within a PHP script?

  You can use AMFPHP. Here is an article that leads to an explanation of pdf:

  http://blogs.Adobe.com/mikepotter/2006/02/flex_and_php_us.html

  or you can google.

• call functions in parent (?) of (?) window popup

  I don't know the terms parent or window in flex 4.

  I want to call functions in the parent of the parent window.

  It seems to be difficult.

  Help me please.

  Thanks in advance.

  ========================== index.mxml ==========================
  (root element: < mx:Application >-xmlns:mx = "http://www.adobe.com/2006/mxml")
  a Main.mxml inside

  ========================== Main.mxml ==========================
  (root element: < s:NavigatorContent >-xmlns:s = "library://ns.adobe.com/flex/spark")

  public function functInMain (): void
  {
  do something
  }
  protected function dataGrid_itemDoubleClickHandler(event:ListEvent):void
  {
  var arr:ArrayCollection = event.currentTarget.dataProvider;
  
  var titleWindowInstance:Popup =
  Popup (PopUpManager.createPopUp (this,
  Popup,
  true));
  titleWindowInstance.rowData = arr.getItemAt (event.rowIndex);
  PopUpManager.centerPopUp (titleWindowInstance);
  }

  ========================== Popup.mxml ==========================

  protected function buttonClickedInpopup (): void
  {

  Application.application.parentDocument.functInMain (null); / / < <-here, I want to correct
  
  }

  Application.application appeal should work if the method you want to call is public.

  There is also another way to do it: with a callback function.

  In your pop-up:

  private var _callbackFunction:Function;
  
  public function set callbackFunction( value:Function ):void {
       _callbackFunction = value;
  }
  
  protected function buttonClickedInpopup():void {
       _callbackFunction(null);
  }
  

  And in your Main.mxml:

  var titleWindowInstance:Popup = Popup(PopUpManager.createPopUp(this, Popup, true));
  titleWindowInstance.rowData =  arr.getItemAt(event.rowIndex);
  titleWindowInstance.callbackFunction = functInMain;
  PopUpManager.centerPopUp(titleWindowInstance);