Problems with QtQuick wizard generated project

[enrico5th]

Hello,

I'm trying to add a C++ defined type to a simple QML file, but when I start debugging the application I receive the following error: "module "APP_CHILD" is not installed
import APP_CHILD 1.0".

The application I'm running is derived from a wizard generated QtQuick application which is meant to handle native system events some way.

The program is structured as follows:

qtquick2applicationviewer/qtquick2applicationviewer.cpp (Wizard generated)
qtquick2applicationviewer/qtquick2applicationviewer.h (Wizard generated)
qtquick2applicationviewer/qtquick2applicationviewer.pri (Wizard generated)
qml/provaintegrazione/main.qml
app.cpp
app.h
main.cpp
provaintegrazione.pro
provaintegrazione.pro.user

and this is the code of the files I modified by myself:

app.h

#ifndef APP_H
#define APP_H
 
#include <QTimer>
#include "qtquick2applicationviewer.h"
 
class cAppChild : public QObject
{
    Q_OBJECT
 
    QTimer timer;
    bool check;
 
public:
    cAppChild();
    virtual ~cAppChild(){}
 
private slots:
    void change(){ check = !check; timer.start(); }
};
 
class cApp : public QtQuick2ApplicationViewer
{
    Q_OBJECT
 
    bool nativeEvent(const QByteArray &eventType, void *message, long *result);
 
public:
    explicit cApp(QWindow *parent = 0);
    virtual ~cApp();
};
 
#endif // APP_H

#ifndef APP_H
#define APP_H

#include <QTimer>
#include "qtquick2applicationviewer.h"

class cAppChild : public QObject
{
    Q_OBJECT

    QTimer timer;
    bool check;

public:
    cAppChild();
    virtual ~cAppChild(){}

private slots:
    void change(){ check = !check; timer.start(); }
};

class cApp : public QtQuick2ApplicationViewer
{
    Q_OBJECT

    bool nativeEvent(const QByteArray &eventType, void *message, long *result);

public:
    explicit cApp(QWindow *parent = 0);
    virtual ~cApp();
};

#endif // APP_H

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app.cpp

#include <QtDeclarative>
#include "app.h"
 
cAppChild::cAppChild()
{
    check = false;
    timer.start();
    //Connections for attach/detach notification
    connect(&timer, SIGNAL(timeout()), this, SLOT(change()));
}
 
 
 
cApp::cApp(QWindow *parent) : QtQuick2ApplicationViewer(parent)
{
}
 
cApp::~cApp()
{
}
 
bool cApp::nativeEvent(const QByteArray &eventType, void *message, long *result)
{
    if( eventType == "windows_generic_MSG" )
    {
        // Some kind of event handling.
    }
    return false;
}

#include <QtDeclarative>
#include "app.h"

cAppChild::cAppChild()
{
    check = false;
    timer.start();
    //Connections for attach/detach notification
    connect(&timer, SIGNAL(timeout()), this, SLOT(change()));
}



cApp::cApp(QWindow *parent) : QtQuick2ApplicationViewer(parent)
{
}

cApp::~cApp()
{
}

bool cApp::nativeEvent(const QByteArray &eventType, void *message, long *result)
{
    if( eventType == "windows_generic_MSG" )
    {
        // Some kind of event handling.
    }
    return false;
}

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main.cpp

#include <QtGui/QGuiApplication>
#include <QtDeclarative>
#include "app.h"
 
int main(int argc, char *argv[])
{
    QGuiApplication app(argc, argv);
 
    qmlRegisterType<cAppChild>("APP_CHILD", 1, 0, "appchild");
 
    cAppChild myApp;
 
    cApp viewer;
    viewer.setMainQmlFile(QStringLiteral("qml/provaintegrazione/main.qml"));
    viewer.showExpanded();
 
    return app.exec();
}

#include <QtGui/QGuiApplication>
#include <QtDeclarative>
#include "app.h"

int main(int argc, char *argv[])
{
    QGuiApplication app(argc, argv);

    qmlRegisterType<cAppChild>("APP_CHILD", 1, 0, "appchild");

    cAppChild myApp;

    cApp viewer;
    viewer.setMainQmlFile(QStringLiteral("qml/provaintegrazione/main.qml"));
    viewer.showExpanded();

    return app.exec();
}

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qml/provaintegrazione/main.qml

import QtQuick 2.0
import QtQuick.Controls 1.0
import APP_CHILD 1.0
 
ApplicationWindow
{
    id: main_window
    Rectangle
    {
        id: pippo
        width: 360
        height: 360
        color: "red"
    }
}

import QtQuick 2.0
import QtQuick.Controls 1.0
import APP_CHILD 1.0

ApplicationWindow
{
    id: main_window
    Rectangle
    {
        id: pippo
        width: 360
        height: 360
        color: "red"
    }
}

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Can anybody try to use the code above on his QtCreator and explain me how to make the qml code recognize the APP_CHILD module?