Exponent of the QML C++ objects

Hello

I am new to qml and BlackBerry. What I want to do is basically described in this link:

http://developer.BlackBerry.com/native/documentation/Cascades/dev/integrating_cpp_qml/index.html#exp...

under "C++ objects exposing to QML.

I did everything as described in the link. The point where I'm stuck is how to get out of here

MyCppClass *cppObject = new MyCppClass();
qml->setContextProperty("cppObject", cppObject);

here

Label {
  text: "Value of cppObject: " +  cppObject.value
}

When I know the code I need to create an instance of my class in the main.cpp file [MyCppClass * cppObject = new MyCppClass();] then setContextProperty to make it able to expose values to qml [qml-> setContextProperty ("cppObject", cppObject)]; and I can get the value by writing "cppObject.value" in my qml file.

However, I get this result in the Console:

ReferenceError: Can't find variable: cppObject

I need to add something in the qml code so that the functions defined in C++ can be used in qml?

I hope that these are enough information to help me here.

All understood why I got this error.

After you have created an instance of the class

TMinutesContact *MinutesContact = new TMinutesContact();
qml->setContextProperty("MinutesContact", MinutesContact);

I need to set up

AbstractPane *root = qml->createRootObject();

app->setScene(root);

to fill the contacts added with my duties of the class 'MinutesContact '.

I don't know yet what exactly setScene does so that it now works.

The App I'm trying is essentially over. The only thing missing was to implement you can get data of the qml code C++ objects. I am familiar with C++, but qml is new to me. So first of all, I had to struggle with all this code in this app.

For all postal code containing in this app would be too much. And I don't know if I'm already good enough to choose just the necessary part that is important for my problem.

Tags: BlackBerry Developers

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