QT doesn't want to load resource

[xLlama]

I want to load a resource. This is my code:

    QFile file(":/images/loading");
    QByteArray dump = file.readAll();
    qDebug() << "contents: " << dump;
    qDebug() << "error status: " << file.error();

But the output is:

QIODevice::read (QFile, ":\images\loading"): device not open
contents:  ""
error status:  0

.pro file:

QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = Streamcloud
TEMPLATE = app


SOURCES += main.cpp\
        mainwindow.cpp

HEADERS  += mainwindow.h

FORMS    += mainwindow.ui

CONFIG += mobility
MOBILITY = 

DISTFILES +=

RESOURCES += \
    images.qrc

images.qrc file:

<RCC>
    <qresource prefix="/images">
        <file alias="loading">loading.gif</file>
    </qresource>
</RCC>

What did I do wrong?

[t3685]

@xLlama

You did not open your file for reading as indicated by the error messag "device not open".

http://doc.qt.io/qt-5/qiodevice.html#open