How to call a function in c ++ QML?

Similar Questions

• How to call the function cascade BlackBerry

  I begineer in blackberry c ++.

  I do two class is testobject and second in test .i call the onther text function average () and nexttext();

  so please how to call this function.

  // Default empty project template
  #include "TestObect.hpp"
  
  #include 
  #include 
  #include 
  
  using namespace bb::cascades;
  
  TestObect::TestObect(bb::cascades::Application *app)
  : QObject(app)
  {
      // create scene document from main.qml asset
      // set parent to created document to ensure it exists for the whole application lifetime
      QmlDocument *qml = QmlDocument::create("asset:///main.qml").parent(this);
  
      // create root object for the UI
      AbstractPane *root = qml->createRootObject();
  
      // set created root object as a scene
      app->setScene(root);
  }
  
  void TestObect::test(){
  
      qDebug()<< "****************Naveen";
  }
  

  I insert also declared in the header file.

  Q_INVOKABLE Sub test();

  then I create another test class.

  /*
   * test.cpp
   *
   *  Created on: Apr 2, 2013
   *      Author: nksharma
   */
  
  #include "test.h"
  
  test::test() {
      // TODO Auto-generated constructor stub
  
  }
  
  void test:: nexttest(){
      qDebug()<<"***********Next test*********"
  
  }
  test::~test() {
      // TODO Auto-generated destructor stub
  }
  

  error in the file namespace,

  here in file herder

  the namespace error

  /*
   * test.h
   *
   *  Created on: Apr 2, 2013
   *      Author: nksharma
   */
  
  #ifndef TEST_H_
  #define TEST_H_
  
  class test {
  public:
      test();
      virtual ~test();
       Q_INVOKABLE void nexttest();
  };
  
  #endif /* TEST_H_ */
  

  You have a space between the colon and the n in:

  void test:: nexttest()
  

  Another thiing, if you are using Q_INVOKABLE, you must declare Q_OBJECT in your front header file public:

   

  
  If you're still having problems, try to clean up the project with Project > clean...

• Call a function from C++ QML

  How to get there? How to call a function QML file c ++.

  I have a list view, and an indicator of activity in the qml and after extraction of xml data from a web service call, I'm unable to fix the datamodel as the XMLDatamodel does not work GroupDataModel works, but to make it work I have to use the data source and I can't set the property type of the DataSoure in c ++

  I'm getting below the code to load the data to GroupDataModel

  dataModel = new GroupDataModel();
  
  DataSource *ds = new DataSource(this);
  ds->setSource(QUrl("file://" + QDir::homePath() + "/model.xml"));
  
  ds->setType(bb::data::DataSourceType::Type.Xml);
  ds->setQuery("/ArrayOfPeople/People");
  

  Hereby, I get Compilation error to

  ds->setType(bb::data::DataSourceType.Xml);
  

  error: wait before create primary expression '.' token

  To work around, I want to load the data source and model of QML function, but this function must be called those the network connection has data extracted and stored in the file.

  Hel me please on this...

  You must give a signal of c ++ and set up a slot in qml connect.

  Example:

  C++

  mQmlDocument->setContextProperty("_myClass", myClass);
  

  emit mySignal()
  

  QML:

  _myClass.mySignal.connect(doSomething);
  
  function doSomething() {
      // logic here
  }
  

• How to call a function in class library?

  Hi all

  Anyone know how to call a function in a library project?

  I have to call using a resource file in a library of a CLDC project project.

  So I write a simple test library and tried to access a function in my CLDC application.

  I tested with 2 following projects.

  1. a library project: TivitFirm

  Sorry I can't answer this from the point of view of the eclipse, I use JDE.  But I suspect that the approaches are similar, even if the detail is different, so maybe this will help you.

  In JDE, you have two options:

  (a) use a jar

  (b) create a dependent project

  (a) I usually use a jar.  So to do this I have a workspace is the library, I compile this, then in my project that uses it, I add the jar to build settings

  (b) in this case, you have two projects in the space of a job, and you say the main project that it is dependent on the library project.

  I hope this helps.

• How to call a function stored in ADF

  How to call a function stored in the ADF?

  Example of function:

  create or replace

  FUNCTION SF_HELLOWORLD

  (

  NAME IN VARCHAR2

  ) RETURN VARCHAR2 AS

  BEGIN

  DBMS_OUTPUT. ENABLE (500000);

  DBMS_OUTPUT. Put_line (' Hello ' |) NAME | ", YOUR ATTEMPT IS SUCCESSFUL");

  -OUTPUT: = 'Hello'. NAME | ', YOUR ATTEMPT IS SUCCESSFUL;

  RETURN 'Hello'. NAME | ', YOUR ATTEMPT IS SUCCESSFUL;

  END SF_HELLOWORLD;

  ADF Code example:

  try {}

  System.out.println ("* beginning of the code *");

  String sql = "declare VARCHAR2 (2000) WISH;" begin to DESIRE: = SF_HELLOWORLD(:NAME); : WISH: = WISH; end; ";

  CallableStatement st = getDBTransaction () .createCallableStatement (sql, getDBTransaction(). DEFAULT VALUE);

  st.setObject ("NAME", "ABC"); replace the ABC with required param

  st.registerOutParameter ("WISHES", Types.VARCHAR);

  St.Execute ();

  System.out.println ("the output of the function DB is:" + st.getObject ("WISHES"));

  System.out.println ("* end of code *");

  } catch (Exception e) {e.printStackTrace () ;}

• How to call the function (function Build-in user) in Pro * C program

  We have developed the application Pro * C program.
  TimesTen version is "TimesTen release 11.2.1.5.0 (64-bit, Linux/x86_64) (tt112150:53308) 2010-03 - 04 T 20: 39:30Z.
  
  We would like to develop Pro * C program you are using PL/SQL.
  
  We have a few questions.
  How to call the function (function Build-in user) in Pro * C program?
  
  #########
  TEST
  #########
  
  ttisql:
  Command > create or replace FUNCTION F_SAMPLE (i_str IN VARCHAR2)
  > BACK NUMBER
  > o_number NUMBER;
  > START
  > select i_str
  > in o_number
  > double;
  >
  > O_number RETURN;
  >
  > EXCEPTION
  > Others THEN
  > RETURN 0;
  > END;
  > /.
  display errors
  The function is created.
  Order > show errors
  No errors.
  Command >
  Command > set serveroutput on;
  Command > declare
  > number of num1;
  > start
  > num1: = F_SAMPLE ('A');
  > DBMS_OUTPUT. PUT_LINE ("F_SAMPLE" |) ' ' || NUM1);
  > end;
  > /.
  F_SAMPLE 0
  
  PL/SQL procedure successfully completed.
  
  Command >
  
  
  Pro * C case:
  
  EXEC SQL BEGIN DECLARE SECTION;
  number of num1;
  EXEC SQL END DECLARE SECTION;
  
  EXEC SQL EXECUTE
  Start
  : num1: = F_SAMPLE ('A');
  end;
  END-EXEC;
  
  Make sure to install:
  Error on line 146, column 3, file plsqlPROC.pc:
  Error on line 146, column 3 in file plsqlPROC.pc
  number of num1;
  .. 1
  PCC-S-02201, encountered the symbol "num1" when expecting one of the following conditions:
  
  
  Thank you.
  
  GooGyum

  There are two problems with your variable declaration:

  1. the name of the variable and type are thew misplacement autour.

  2. you may not use a host variable type.

  If you change this to:

  EXEC SQL BEGIN DECLARE SECTION;
  int num1;
  EXEC SQL END DECLARE SECTION;

  Then it will work very well.

  Chris

• How to call javascript in an another QML

  Hello

  I have 2 file QML file qml 1A listview with ArrayDataModel as the source of data, when the user clicks on a line, it nav push another QML to change/remove, the arrayDataModel consist of a given amount of time, which 1 contains a qml file label to display the subtotal of all time values in the data model. I also have a javascript that will do a loop through the ArrayDataModel to update the label of the total time that I call the file onCreationCompleted 1 qml, all works well.

  However, when deleted, the listview will automatically update, now the problem is how can I trigger a refresh on qml file 1 in order to update this label.

  Here's the qml file 1

  import bb.cascades 1.0
  
  NavigationPane {
      id: navigationPane
      backButtonsVisible: false
      Page {
          titleBar: TitleBar {
              title: "Interval Timer"
          }
  
          content: Container {
              id: root
              background: Color.LightGray
  
              // Javascript definition
              function udpateTotalTimeLabel() {
                  var totalHour = 0, totalMinute = 0, totalSecond = 0;
                  var print = function(o) {
                      var str = '';
  
                      for (var p in o) {
                          if (typeof o[p] == 'string') {
                              str += p + ': ' + o[p] + '; 
  ';
                          } else {
                              str += p + ': { 
  ' + print(o[p]) + '}';
                          }
                      }
  
                      return str;
                  }
                  for (var i = 0; i < eventsModel.size(); i ++) {
                      var currentEvent = eventsModel.data([ i ]);
                      totalHour += parseInt(currentEvent["EventHour"]);
                      totalMinute += parseInt(currentEvent["EventMinute"]);
                      totalSecond += parseInt(currentEvent["EventSecond"]);
                  }
  
                  if (totalHour < 10) totalHour = "0"+ totalHour;
                  if (totalMinute < 10) totalMinute = "0" + totalMinute;
                  if (totalSecond < 10) totalSecond = "0" + totalSecond;
  
                  totalTimeLabel.text = totalHour + ":" + totalMinute + ":" + totalSecond;
              }
  ...
             Container { // Container for the total time
                  id: digitsContainer
                  preferredWidth: 780.0
                  background: Color.create(0.2, 0.2, 0.2)
                  bottomPadding: 50.0
                  layout: DockLayout {
                  }
  
                  verticalAlignment: VerticalAlignment.Center
                  horizontalAlignment: HorizontalAlignment.Center
                  topPadding: 50.0
                  topMargin: 0.0
                  Label {
                      id: totalTimeLabel
                      horizontalAlignment: HorizontalAlignment.Center
                      text: "88 : 88"
                      textStyle.fontSizeValue: 0.0
                      textStyle.lineHeight: 1.5
                      textStyle.textAlign: TextAlign.Center
  
                      topMargin: 0.0
                      verticalAlignment: VerticalAlignment.Center
                      // Apply a text style to create large, light gray text
                      textStyle {
                          base: SystemDefaults.TextStyles.BigText
                          color: Color.Green
                      }
                  } // end of total time container
              }
              Container { // Conatiner for the Go button
                  id: goButtonContainer
                  layout: StackLayout {
  .....                    onCreationCompleted: {
              root.udpateTotalTimeLabel();
              console.log("No of EventsModel: " + eventsModel.size());
              console.log("In sheet creationCompleted");
              mainObj.dataReady.connect(root.onDataReady);
          }
  

  Here's the qml file 2

  import bb.cascades 1.0
  import bb.system 1.0
  
  Page {
      titleBar: TitleBar {
          title: "Edit Event Detail"
      }
      property alias txtEventName: eventNameText
      property alias pickEventTime: eventTimePicker
      property int selectedIndex: 0
  
      // Javascript implementation
  
      content: Container {
          id: editEventPage
  
          Container {
              layout: StackLayout {
                  orientation: LayoutOrientation.TopToBottom
              }
              Container {
                  Container {
                      layout: StackLayout {
                          orientation: LayoutOrientation.LeftToRight
                      }
                      leftPadding: 20.0
                      topPadding: 50.0
                      bottomPadding: 50.0
                      Label {
                          text: "Event Name"
                          preferredWidth: 200.0
                      }
                      TextField {
                          id: eventNameText
                          hintText: "Enter Event Name"
                          preferredWidth: 500.0
                      }
                  }
                  Container {
                      layout: StackLayout {
                          orientation: LayoutOrientation.LeftToRight
                      }
                      leftPadding: 20.0
                      Label {
                          text: "Event Time"
                          preferredWidth: 200.0
                      }
                      DateTimePicker {
                          id: eventTimePicker
                          mode: DateTimePickerMode.Timer
                          minuteInterval: 1
                          preferredWidth: 500.0
  
                          onValueChanged: {
                          }
  
                      }
                  }
              }
          }
      }
      // Attached Objects
      attachedObjects: [
          SystemDialog {
              id: dialogConfirmDelete
              title: "Confirm Delete"
              body: "Do you really want to delete this event?"
              onFinished: {
                  if (dialogConfirmDelete.result == SystemUiResult.ConfirmButtonSelection) {
                      console.log("Commiting to delete " + selectedIndex);
                      eventsModel.removeAt(selectedIndex);
                      navigationPane.pop();
                  }
                  else {
                      return;
                  }
              }
          }
      ]
      // Context actions
      actions: [
          ActionItem {
              title: "Save"
              ActionBar.placement:ActionBarPlacement.OnBar
  
              onTriggered: {
  
              }
          },
          ActionItem {
              title: "Delete"
              ActionBar.placement:ActionBarPlacement.OnBar
  
              onTriggered: {
                  dialogConfirmDelete.show();
              }
          },
          ActionItem {
              title: "Cancel"
              ActionBar.placement: ActionBarPlacement.OnBar
  
              onTriggered: {
                  navigationPane.pop();
              }
          }
      ]
  }
  

  Thanks in advance

  NVMD, I solved it.

  QML 2 file-> refresh C++ function signal-> qml file 1 onDataReady call javascript to label fresh

• How to call external functions without one. DLL (just using a.) H and. LIB file)?

  Hi all

  in fact, I am facing difficulties on how to get an external function is called in CVI (Version 2009).

  I was delivered with a. H file and a. LIB file to call an external function of my project CVI. The. H file looks like this:

  void exportedFunction(double *parameter);
  

  As far as I know, the external function was written with MS Visual C++ 6.

  So, I tried to link statically to the al extern like this function:

  -Add the. H file and the. LIB file to the CVI project

  -#include the. Folder H when I needed to call the external function

  -do the external function call

  During construction I get unresolved CVI external function call error, so this seems not work.

  I did some research autour and stood up with two possible problems. Maybe one of you can help me get a bit further and do work things out.

  (1) of the code of the 'real' function inside the DLL file that was not delivered to me. Or y at - it a way to get concrete results (calling external functions) with just one. H and a. LIB file (with none. Included DLL file)?

  (2) the external function does not export according to the rules of Style 'C '. The signature of the function in the. H file shows some things don't like

  extern "C" __declspec(dllexport) void __stdcall ...
  

  Or maybe it's a combination of these two issues (missing. DLL + bad export style function)?

  I guess I could get around the incorrect service export style when I managed to write a wrapper around the original function that actually uses Style C exporters. But I guess I need to the. DLL file for this test as well.

  Thank you very much for your answers.

  Best regards

  Bernd

  There is no need for the stuff of dllexport. There is also the option of a static library without any DLL.  But the "extern"C"' is essential, because it forces the C++ compiler, which was probably used to compile the library to use the C calling convention.

  If you are unable to ask the library vendor to provide a version that was compiled using C calling convention is the way to write a wrapper with VC ++ 6 around this library that functions using C calling convertion reexports. Something like

  extern 'C' myfunc1 type0 (type1 arg1,...) {

  Back to func1 (arg1,...);

  }

  for each function, you must use.

  BTW. "unresolved symbol" is the error message from the linker, you can expect if you try to bind the C code against a generation of library with the C++ calling convention.

• How to call a function within a movieclip on the main timeline in CC animate canvas?

  Hello world...

  In AS3: Function (fnc name: myFunction) inside a Movieclip (mc1). I'll call you timeline mc1.myFunction ();

  But how to call AnimateCC canvas?

  If you have an instance of MovieClip named "mc" with the following code in to:

  This.Fun = function() {}

  Alert ("Hey!");

  }

  You can call this function (increased to 'this' within the MC) using the oon following the main timeline:

  var root = this;

  this.mc.addEventListener ("click", function() {}

  Console.log (root.mc.fun ());

  });

• How to call a function in another function?

  When I press a button, I want a series of functions to be performed one after the other (they contain interpolations, but its not relevant) , all of them waiting for the previous must be filled. I want to put the series of functions within a function, so I can simply call this function to run all others. Animations work well, but I don't know how to call functions of in another function. It would also be necessary each function to wait until the previous one is complete, to run. This is a clear example of what I need to do:

  boton.onPress = animate;

  Function animate () {}

  Animation1 (onComplete: animation2);

  animation2 (onComplete: animation3);

  animation3;

  }

  Function () {Tween 1} animation1;

  Function () {Tween 2} animation2.

  Function animation3 () {Tween 3};

  any suggestions?

  which isn't really make sense unless you're tweening or do something of asynchronous (such as loading a file).

  Function b (): Void {}

  C() ;

  D() ;  C() executed when this line runs

  }

• How to call the function

  Hello
  
  How to call functions defined by the user in the select statement.
  I have to concat all the result of columns, though kindly help me.
  
  When I run after sql statement
  
  
  SELECT orgin_pos. «, » || the sender | «, » || consigneename | «, » || vesselname | «, » || travelno | «, » || POS | «, » || ETD | «, » ||
  ETA | «, » || NOP | «, » || grossweight | «, » || CCube | «, » || ccontainer | «, » || CSize. «, » || CType | «, » || Goh | «, » || HBL | «, » ||
  get_sea_report (hbl) linername | «, » || CompanyName AS overseasagent
  OF vietanam_report_view_bd
  
  
  
  -of cluase not found where expected error is coming.
  Kindly help me.
  
  concerning
  Prakash P

  Handle:  808542
  Status Level:  Newbie
  Registered:  Nov 8, 2010
  Total Posts:  69
  Total Questions:  48 (45 unresolved)  
  

• How 2 call a function db pls. ???

  Hello
  
  I created a function of db, I don't know how 2 call form
  

  CREATE OR REPLACE Function Balance_quantity_update    ( V_STORE_ID  IN NUMBER  ,  V_ITEM_SERIAL IN NUMBER   )
     RETURN NUMBER IS
      cnumber NUMBER;
      CURSOR CR_UPDATE  IS
  
      SELECT NVL( MAX( BALANCE_QTY ) , 0  )
       FROM WH_T_ITEMS
      WHERE STORE_ID    =  V_STORE_ID 
       AND    ITEM_SERIAL  = V_ITEM_SERIAL ;       
  BEGIN
  OPEN CR_UPDATE  ;
  FETCH CR_UPDATE   INTO cnumber;
  IF CR_UPDATE%notfound then     NULL ;
  ELSE
  
  LOOP
  
    UPDATE  WH_T_ITEMS
          SET    BALANCE_QTY          =  cnumber 
          WHERE  WH_T_ITEMS.STORE_ID  =  V_STORE_ID
          AND    ITEM_SERIAL          =  V_ITEM_SERIAL;    
  
  END LOOP ;
  END IF;
  
  CLOSE CR_UPDATE  ;
  RETURN cnumber;
  EXCEPTION
  WHEN OTHERS THEN
        raise_application_error(-20001,'An error was encountered - '||SQLCODE||' -ERROR- '||SQLERRM);
  END Balance_quantity_update; 
  /

  Can someone help me pls...
  
  Kind regards
  
  Abdetu...

  DECLARE
    vRetVal NUMBER;
  BEGIN
    vRetVal:=Balance_quantity_update(Pass_Store_ID, Pass_Item_Serial);
  END;
  

  -Clément

• How to call a function plugin with command line parameters

  I wrote a plugin that processes an open document. The treatment can be started by selecting a menu item in Acrobat. To start the processing of the command line, I also wrote a small Visual Basic executable file that currently a bit activates the menu command. However, I now have to pass some parameters to the plugin. I managed to call a function plugin with settings by loading the .api as a library file in the VB executable. But it seems that the entire Acrobat SDK functionality is not initialized in this way. So I can't work with the PDF file. How can I call my function plugin with settings in Acrobat? Thomas

  You must establish a form of IAC (communication monitor) of your VB application with your plugin.

  Whether COM, DDE, IPC, named pipes, shared memory files share, etc. is to you...

• How to call the function lavel root & variable external loaded swf file

  I have little problem in as3.  I load 'mainmenu.swf' file "main.swf". through class loader. so now "main.swf" is children of parents 'mainmenu.swf' file how can call "main.swf" variable and function of "mainmenu.swf".

  The parent of the loaded swf file is the charger.  The main SWF is the parent of the charger.  Then to communicate with the main storyline of the loaded file can use:

  MovieClip (parent.parent) .someFunction ();

• How to call the function procedure

  Hello
  
  I don't have any idea how can I call a function procedure?
  
  Your answer is apprecited.
  
  
  Thanks in advance

  create or replace fn
  return varchar2
  is
  begin
  
  --pass your procedure here
  
  proc1(20);
  
  end;