How set source for Image - function on c++

[Mihaill]

Hi!
I have function on c++, this function return QImage.
How I can set source for Image - this function?

[VRonin]

https://doc.qt.io/qt-5/qimage.html#load

[Mihaill]

@VRonin Why do that? My function creates and returns QImage on its own.
How to set the returned QImage for Image in qml?

[IntruderExcluder]

For not large images you can convert them to a string using Base64 format. Not optimal but kind of acceptable. For large images it is better to use QQuickImageProvider.

[Mihaill]

I use this code, but Image in qml not use thes string.
How fix this?

    QString resultString;
    QByteArray ba;
    QBuffer bu(&ba);
    bu.open(QIODevice::WriteOnly);
    image.save(&bu, "PNG");
    resultString = QString::fromLatin1(ba.toBase64().data());
    qDebug()<<"resultString = QString::fromLatin1"<<resultString;
    return resultString;

And this too not work

resultString = ba.toBase64();

[Mihaill]

It is work

    QString resultString;
    QByteArray ba;
    QBuffer bu(&ba);
    bu.open(QIODevice::WriteOnly);
    image.save(&bu, "PNG");
    //resultString = QString::fromLatin1(ba.toBase64().data());
    resultString = QString::fromLatin1("data:image/png;base64,") + QString::fromLatin1(ba.toBase64().data());
    qDebug()<<"resultString = QString::fromLatin1"<<resultString;
    return resultString;

[small_bird]

@Mihaill using image provider class, the qt example shows it.