> Hi All
>
> My app is some kind of special flickr viewer and is nearly fully done in QML.
> I want to let user to be able to save some Images to the device. Right now I
> am passing the Image's URL to the C++ side and download the image using
> QNetworkManager.
>
> That, however, means that in almost all cases C++ side is going to download
> the very same file already downloaded on QML side (by setting Image.source
> property).
>
> Is there a way to avoid double download and pass the Image's data to C++ side
> to further saving as JPG or PNG (JPG is the original format if it matters).
>
> Best regards,
> Artem.
>
Hi,
You can use QNetworkDiskCache in C++ side:
QNetworkAccessManager *manager = new QNetworkAccessManager(this);
QNetworkDiskCache *diskCache = new QNetworkDiskCache(this);
diskCache->setCacheDirectory("cacheDir");
manager->setCache(diskCache);
// do a request preferred from cache
QNetworkRequest request(QUrl(QString("http://qt.nokia.com";)));
request.setAttribute(QNetworkRequest::CacheLoadControlAttribute,
QNetworkRequest::PreferCache);
manager->get(request);
-Niko
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