QMovie not starting

Dummie1138

Hi. I have a QMovie that is stuck in the QMovie::NotRunning state. To be specific, this is my code. The QMovie does not display on the ui, if that helps.

    QMovie *movie = new QMovie("images/nope.gif");
    //Read size of gif then reset size based on the ratio
    movie->setScaledSize(ui->loadingLabel->size());
    ui->loadingLabel->setMovie(movie);
    ui->loadingLabel->movie()->start();
    qDebug() << "welpMovie " << movie->state();
    movie->setPaused(true);
    connect(ui->loadingLabel->movie(), SIGNAL(finished()), this, SLOT(setPaused()));
    qDebug() << movie->loopCount();

This is the output when this code is run:

welpMovie  QMovie::NotRunning
-1

Please let me know if more information is required, I am not sure where to begin. So far, I have also tried the following, which was ineffective:

movie->start();
qDebug() << "welpMovie " << movie->state();

Output: welpMovie QMovie::NotRunning

jsulm

@Dummie1138 said in QMovie not starting:

ui->loadingLabel->movie()->start();
qDebug() << "welpMovie " << movie->state();

You are calling state() right after calling start(). This will not work - start() is asynchronous. You need to connect a slot to https://doc.qt.io/qt-6/qmovie.html#stateChanged to get state updates when they occur.
And you really should use newer Qt5 connect syntax.

SGaist

Hi,

Beside the excellent point of @jsulm, you are using a relative path so unless you ensure that the file is beside the executable at that path when you start your application, it won't find it.