Creating custom objects on c++ side

[Anton]

Hi! What is the way to create custom objects and passing them to python scripts?
In examples I found PyCustomMetaTypeExample, but I need something like this:

//....
// Custom object created in c++
//
    CustomObjectWrapper* custom = new CustomObjectWrapper();

    qRegisterMetaType<CustomObject>("CustomObject");

    PythonQt::self()->registerCPPClass(
        "CustomObject","","example",     
        PythonQtCreateObject<CustomObjectWrapper>);

// Here I want to pass "custom" to python script
//
    mainModule.addObject("custom", custom );

    mainModule.evalFile("GettingStarted2.py");


// And then receive custom object with python's script changes, 
// I don't know how access custom 
//    qDebug() << "Custom"   << custom->firstName; ??? 

[Anton]

Just try this code, it don't has result too.
In header:

class CustomObject2 : public QObject {
  Q_OBJECT

public:
  QString _firstName;
  QString _lastName;

  QString firstName() { return _firstName; }
  QString lastName() { return _lastName; }

  void setFirstName(const QString& name) { _firstName = name; }
  void setLastName(const QString& name) { _lastName = name; }
};

In main.cpp:

    QCoreApplication a(argc, argv);
    PythonQt::init();
    PythonQtObjectPtr 
             mainModule =  PythonQt::self()->getMainModule();

    CustomObject2* custom = new CustomObject2();

    PythonQt::self()->registerClass( &CustomObject2::staticMetaObject, "example" );

    mainModule.addObject("custom", custom );
    mainModule.evalFile("GettingStarted2.py");

    QVariant result = mainModule.evalScript("custom.firstName()", Py_eval_input);

    qDebug() << "Finished" << custom->firstName() << result; 

In GettingStarted2.py:

from PythonQt.example import CustomObject2

# set a name
custom.setFirstName("Mike")
custom.setLastName("Michels")

Output:

Finished "" QVariant(, )

[Florian Link]

In you second example, you need to place the methods that should be scriptable into a

public slots:

section. Alternatively, you can add a Q_INVOKABLE macro in front of each method that should be scriptable, but using slots is more common.

Have a closer look at the PythonQt examples, all your questions should be answered by the examples.

[Anton]

Fine! Thank You very much, Florian!