How to get the content of a QImage ?

[fitzy]

Hi there!

I'd like to get the data of a QImage or a QPixmap


Any idea

[aamer4yu]

What do you mean by data of image ?
QImage::bits ?

[fitzy]

I mean the data that you can see when you open an image with notepad for example.


Maybe a buffer could help ?

[aamer4yu]

Have a look at QImage::save

QImage image;
         QByteArray ba;
         QBuffer buffer(&ba);
         buffer.open(QIODevice::WriteOnly);
         image.save(&buffer, "PNG"); // writes image into ba in PNG format

QImage image;
         QByteArray ba;
         QBuffer buffer(&ba);
         buffer.open(QIODevice::WriteOnly);
         image.save(&buffer, "PNG"); // writes image into ba in PNG format

To copy to clipboard, switch view to plain text mode 

So may be the bytearray ba might of use to you

[fitzy]

Thank you that's a good step forward !

Now I can send the datas of an image to a browser.

However, the files (png) are still corrupted according to all my softwares (photoshop, paint, windows, ...)

Why is that ?


EDIT : I just found out ! In fact, I used utf8 instead of ISO 8859-1 for my QTextStream !

Thanks again aamer4yu !