C++ and QML: finding children

spode

@ //main.qml
#include <QtGui/QApplication>
#include "qmlapplicationviewer.h"
#include "funzioni.h"
#include <QDeclarativeContext>
#include <QGraphicsObject>
#include <QDeclarativeEngine>

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

Funzioni funz;
QDeclarativeView view;
view.rootContext()->setContextProperty("myObject", &funz);
view.setSource(QUrl::fromLocalFile&#40;"qml/fileTrenner2/main.qml"&#41;&#41;;

view.setWindowFlags(Qt::FramelessWindowHint);
view.setWindowTitle("File Trenner");
view.move(600,20);
QObject::connect(view.engine(),SIGNAL(quit()),QCoreApplication::instance(),SLOT(quit()));

view.show();

return app.exec&#40;&#41;;

}
@

@ //funzioni.cpp
...
QDeclarativeView view;
view.setSource(QUrl::fromLocalFile("qml/fileTrenner2/main.qml"));
QObject *finestraPrincipale = view.rootObject();
QObject input = finestraPrincipale->findChild<QObject>("componenteInput");
...
@
@ //main.qml
Retangle {
width: 500; height: 500
id: finestraPrincipale
...
Text {
y: 79; x: -20
rotation: -90
text: "Nome del file di input"
}
Text {
x: 18
y: -10
z: 1
color: "orange"
id: input
objectName: "componenteInput"
text: "input"
rotation: -90
}
Text {
y: 75; x:0
rotation: -90
text: "Nome del file di output"
}
Text {
x: 38; y: -15; z: 1
id: output
objectName: "componenteOutput"
color: "blue"
rotation: -90
text: "output"
}
...
}
@

where is the problem? i can not set the properties to the my rootObject's child... why???? naturally, finestraPrincipale in main.qml has other children

thisisbhaskar

This should work. Did you try to debug or are you getting any compile time errors.

finestraPrincipale => does this get valid pointer?? after the statement
@QObject *finestraPrincipale = view.rootObject();@

spode

boh! how can i verify it?

loladiro

[quote author="Vijay Bhaska Reddy" date="1308470508"]This should work. Did you try to debug or are you getting any compile time errors.

finestraPrincipale => does this get valid pointer?? after the statement
@QObject *finestraPrincipale = view.rootObject();@

[/quote]
If it wasn't a valid pointer (i.e. 0) he'd get a SIGSEV anyway on the findChild method.

@spode: You could try to use the objectName() method to find out whether you actually have the right object