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[SOLVED] QML Application Crashes on window->show
I made a very basic application where I am just creating a rectangle in QML and showing it from my main as follows:
int main(int argc, char *argv)
QGuiApplication app(argc, argv);
QQmlApplicationEngine engine; engine.load(QStringLiteral("C:/Qt/Tools/QtCreator/bin/FreakingWork/main.qml")); QObject *topLevel = engine.rootObjects().value(0); QQuickWindow *window = qobject_cast<QQuickWindow *>(topLevel); window->show(); return app.exec();
@import QtQuick 2.0
For some reason when I run the above it says that "The program unexpectedly finished" and that the .exe has crashed. It seems that what I am doing is very basic so I do not see what can cause it to crash.
If I comment out the window->show portion it does not crash until I tell the program to stop running. Any ideas?
topLevel is NULL
topLevel is not a QQuickWindow thus window is NULL
[quote author="SGaist" date="1393534511"]Hi,
topLevel is NULL
topLevel is not a QQuickWindow thus window is NULL[/quote]
Thanks for the quick response. In the back of my mind I knew that was the problem. I guess the better question is why is that happening. I have used this same code numerous times without error, but for some reason now I am having a problem. I checked my path to main.qml and it is fine. I am not sure how else to debug it.
I solved the problem. It was that in my main.qml, my top level component was a rectangle. I changed it to ApplicationWindow so that I actually had a window and it worked. I had to add import QtQuick.Controls 1.0 as well.
Thanks for the help SGaist!