[Solved] Having trouble using QDeclarativeView

Endless

I'm trying to get a QML file to run from my C++ program. I looked on the Nokia website, and they have tips posted on how to do it. I got the following code directly from the Nokia website: http://get.qt.nokia.com/training/QtQuickforCppDevelopers/slides/qml-cpp-integration.pdf

@
#include <QApplication>
#include <QDeclarativeView>
#include <QUrl>

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

QDeclarativeView view;
view.setSource(QUrl("qrc:files/animation.qml"));
view.show();

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

}
@

This seems pretty easy and straightforward, right? I put this in Qt Creator, and I get an error when I try to build: QDeclarativeView: No such file or directory. This is the first among 4 errors.

The closest library I could find is <QtDeclarative/QDeclarativeView>, but when I include this, it doesn't work either. Why doesn't code work that's right on the Nokia website? What am I doing wrong here?

lgeyer

You will have to add
@
QT += declarative
@
to your .pro file. This has to be done for every Qt module you are going to use besides core (which is set automatically). Others are for example gui, network, xml.

Endless

That wasn't hard at all. Thanks for the info. My pro file already had QT += core. Do I add a "" to the end of this line and put declarative on the next line, or do I even need core?

mlong

You do need core.

You can do:

@
QT += core declarative
@
or
@
QT += core
declarative
@
or
@
QT += core
QT += declarative
@

They're all equivalent.

cpscotti

Don't forget you'll need that qml file properly referenced in the resources file (hence the qrc:/) with appropriate path and/or prefix..